21322620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{89}}^1$

素因数の和:137

約数の個数: 144

約数和(自身を含む): 71940960

約数和(自身を除く): 50618340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 89, 90, 99, 110, 121, 132, 165, 178, 180, 198, 220, 242, 267, 330, 356, 363, 396, 445, 484, 495, 534, 605, 660, 726, 801, 890, 979, 990, 1068, 1089, 1210, 1331, 1335, 1452, 1602, 1780, 1815, 1958, 1980, 2178, 2420, 2662, 2670, 2937, 3204, 3630, 3916, 3993, 4005, 4356, 4895, 5324, 5340, 5445, 5874, 6655, 7260, 7986, 8010, 8811, 9790, 10769, 10890, 11748, 11979, 13310, 14685, 15972, 16020, 17622, 19580, 19965, 21538, 21780, 23958, 26620, 29370, 32307, 35244, 39930, 43076, 44055, 47916, 53845, 58740, 59895, 64614, 79860, 88110, 96921, 107690, 118459, 119790, 129228, 161535, 176220, 193842, 215380, 236918, 239580, 323070, 355377, 387684, 473836, 484605, 592295, 646140, 710754, 969210, 1066131, 1184590, 1421508, 1776885, 1938420, 2132262, 2369180, 3553770, 4264524, 5330655, 7107540, 10661310, 21322620]

約数ペア:

[(1, 21322620), (2, 10661310), (3, 7107540), (4, 5330655), (5, 4264524), (6, 3553770), (9, 2369180), (10, 2132262), (11, 1938420), (12, 1776885), (15, 1421508), (18, 1184590), (20, 1066131), (22, 969210), (30, 710754), (33, 646140), (36, 592295), (44, 484605), (45, 473836), (55, 387684), (60, 355377), (66, 323070), (89, 239580), (90, 236918), (99, 215380), (110, 193842), (121, 176220), (132, 161535), (165, 129228), (178, 119790), (180, 118459), (198, 107690), (220, 96921), (242, 88110), (267, 79860), (330, 64614), (356, 59895), (363, 58740), (396, 53845), (445, 47916), (484, 44055), (495, 43076), (534, 39930), (605, 35244), (660, 32307), (726, 29370), (801, 26620), (890, 23958), (979, 21780), (990, 21538), (1068, 19965), (1089, 19580), (1210, 17622), (1331, 16020), (1335, 15972), (1452, 14685), (1602, 13310), (1780, 11979), (1815, 11748), (1958, 10890), (1980, 10769), (2178, 9790), (2420, 8811), (2662, 8010), (2670, 7986), (2937, 7260), (3204, 6655), (3630, 5874), (3916, 5445), (3993, 5340), (4005, 5324), (4356, 4895)]