21418020

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1$

素因数の和:153

約数の個数: 168

約数和(自身を含む): 73265976

約数和(自身を除く): 51847956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 113, 117, 130, 135, 156, 162, 180, 195, 226, 234, 243, 260, 270, 324, 339, 351, 390, 405, 452, 468, 486, 540, 565, 585, 678, 702, 729, 780, 810, 972, 1017, 1053, 1130, 1170, 1215, 1356, 1404, 1458, 1469, 1620, 1695, 1755, 2034, 2106, 2260, 2340, 2430, 2916, 2938, 3051, 3159, 3390, 3510, 3645, 4068, 4212, 4407, 4860, 5085, 5265, 5876, 6102, 6318, 6780, 7020, 7290, 7345, 8814, 9153, 9477, 10170, 10530, 12204, 12636, 13221, 14580, 14690, 15255, 15795, 17628, 18306, 18954, 20340, 21060, 22035, 26442, 27459, 29380, 30510, 31590, 36612, 37908, 39663, 44070, 45765, 47385, 52884, 54918, 61020, 63180, 66105, 79326, 82377, 88140, 91530, 94770, 109836, 118989, 132210, 137295, 158652, 164754, 183060, 189540, 198315, 237978, 264420, 274590, 329508, 356967, 396630, 411885, 475956, 549180, 594945, 713934, 793260, 823770, 1070901, 1189890, 1427868, 1647540, 1784835, 2141802, 2379780, 3569670, 4283604, 5354505, 7139340, 10709010, 21418020]

約数ペア:

[(1, 21418020), (2, 10709010), (3, 7139340), (4, 5354505), (5, 4283604), (6, 3569670), (9, 2379780), (10, 2141802), (12, 1784835), (13, 1647540), (15, 1427868), (18, 1189890), (20, 1070901), (26, 823770), (27, 793260), (30, 713934), (36, 594945), (39, 549180), (45, 475956), (52, 411885), (54, 396630), (60, 356967), (65, 329508), (78, 274590), (81, 264420), (90, 237978), (108, 198315), (113, 189540), (117, 183060), (130, 164754), (135, 158652), (156, 137295), (162, 132210), (180, 118989), (195, 109836), (226, 94770), (234, 91530), (243, 88140), (260, 82377), (270, 79326), (324, 66105), (339, 63180), (351, 61020), (390, 54918), (405, 52884), (452, 47385), (468, 45765), (486, 44070), (540, 39663), (565, 37908), (585, 36612), (678, 31590), (702, 30510), (729, 29380), (780, 27459), (810, 26442), (972, 22035), (1017, 21060), (1053, 20340), (1130, 18954), (1170, 18306), (1215, 17628), (1356, 15795), (1404, 15255), (1458, 14690), (1469, 14580), (1620, 13221), (1695, 12636), (1755, 12204), (2034, 10530), (2106, 10170), (2260, 9477), (2340, 9153), (2430, 8814), (2916, 7345), (2938, 7290), (3051, 7020), (3159, 6780), (3390, 6318), (3510, 6102), (3645, 5876), (4068, 5265), (4212, 5085), (4407, 4860)]