21240300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{701}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 62152272

約数和(自身を除く): 40911972

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 101, 150, 202, 300, 303, 404, 505, 606, 701, 1010, 1212, 1402, 1515, 2020, 2103, 2525, 2804, 3030, 3505, 4206, 5050, 6060, 7010, 7575, 8412, 10100, 10515, 14020, 15150, 17525, 21030, 30300, 35050, 42060, 52575, 70100, 70801, 105150, 141602, 210300, 212403, 283204, 354005, 424806, 708010, 849612, 1062015, 1416020, 1770025, 2124030, 3540050, 4248060, 5310075, 7080100, 10620150, 21240300]

約数ペア:

[(1, 21240300), (2, 10620150), (3, 7080100), (4, 5310075), (5, 4248060), (6, 3540050), (10, 2124030), (12, 1770025), (15, 1416020), (20, 1062015), (25, 849612), (30, 708010), (50, 424806), (60, 354005), (75, 283204), (100, 212403), (101, 210300), (150, 141602), (202, 105150), (300, 70801), (303, 70100), (404, 52575), (505, 42060), (606, 35050), (701, 30300), (1010, 21030), (1212, 17525), (1402, 15150), (1515, 14020), (2020, 10515), (2103, 10100), (2525, 8412), (2804, 7575), (3030, 7010), (3505, 6060), (4206, 5050)]