21300840

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{163}}^1$

素因数の和:205

約数の個数: 192

約数和(自身を含む): 78523200

約数和(自身を除く): 57222360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 88, 90, 99, 108, 110, 120, 121, 132, 135, 163, 165, 180, 198, 216, 220, 242, 264, 270, 297, 326, 330, 360, 363, 396, 440, 484, 489, 495, 540, 594, 605, 652, 660, 726, 792, 815, 968, 978, 990, 1080, 1089, 1188, 1210, 1304, 1320, 1452, 1467, 1485, 1630, 1793, 1815, 1956, 1980, 2178, 2376, 2420, 2445, 2904, 2934, 2970, 3260, 3267, 3586, 3630, 3912, 3960, 4356, 4401, 4840, 4890, 5379, 5445, 5868, 5940, 6520, 6534, 7172, 7260, 7335, 8712, 8802, 8965, 9780, 10758, 10890, 11736, 11880, 13068, 14344, 14520, 14670, 16137, 16335, 17604, 17930, 19560, 19723, 21516, 21780, 22005, 26136, 26895, 29340, 32274, 32670, 35208, 35860, 39446, 43032, 43560, 44010, 48411, 53790, 58680, 59169, 64548, 65340, 71720, 78892, 80685, 88020, 96822, 98615, 107580, 118338, 129096, 130680, 157784, 161370, 176040, 177507, 193644, 197230, 215160, 236676, 242055, 295845, 322740, 355014, 387288, 394460, 473352, 484110, 532521, 591690, 645480, 710028, 788920, 887535, 968220, 1065042, 1183380, 1420056, 1775070, 1936440, 2130084, 2366760, 2662605, 3550140, 4260168, 5325210, 7100280, 10650420, 21300840]

約数ペア:

[(1, 21300840), (2, 10650420), (3, 7100280), (4, 5325210), (5, 4260168), (6, 3550140), (8, 2662605), (9, 2366760), (10, 2130084), (11, 1936440), (12, 1775070), (15, 1420056), (18, 1183380), (20, 1065042), (22, 968220), (24, 887535), (27, 788920), (30, 710028), (33, 645480), (36, 591690), (40, 532521), (44, 484110), (45, 473352), (54, 394460), (55, 387288), (60, 355014), (66, 322740), (72, 295845), (88, 242055), (90, 236676), (99, 215160), (108, 197230), (110, 193644), (120, 177507), (121, 176040), (132, 161370), (135, 157784), (163, 130680), (165, 129096), (180, 118338), (198, 107580), (216, 98615), (220, 96822), (242, 88020), (264, 80685), (270, 78892), (297, 71720), (326, 65340), (330, 64548), (360, 59169), (363, 58680), (396, 53790), (440, 48411), (484, 44010), (489, 43560), (495, 43032), (540, 39446), (594, 35860), (605, 35208), (652, 32670), (660, 32274), (726, 29340), (792, 26895), (815, 26136), (968, 22005), (978, 21780), (990, 21516), (1080, 19723), (1089, 19560), (1188, 17930), (1210, 17604), (1304, 16335), (1320, 16137), (1452, 14670), (1467, 14520), (1485, 14344), (1630, 13068), (1793, 11880), (1815, 11736), (1956, 10890), (1980, 10758), (2178, 9780), (2376, 8965), (2420, 8802), (2445, 8712), (2904, 7335), (2934, 7260), (2970, 7172), (3260, 6534), (3267, 6520), (3586, 5940), (3630, 5868), (3912, 5445), (3960, 5379), (4356, 4890), (4401, 4840)]