21150120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{337}}^1\times {\mathrm{523}}^1$

素因数の和:874

約数の個数: 64

約数和(自身を含む): 63760320

約数和(自身を除く): 42610200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 337, 523, 674, 1011, 1046, 1348, 1569, 1685, 2022, 2092, 2615, 2696, 3138, 3370, 4044, 4184, 5055, 5230, 6276, 6740, 7845, 8088, 10110, 10460, 12552, 13480, 15690, 20220, 20920, 31380, 40440, 62760, 176251, 352502, 528753, 705004, 881255, 1057506, 1410008, 1762510, 2115012, 2643765, 3525020, 4230024, 5287530, 7050040, 10575060, 21150120]

約数ペア:

[(1, 21150120), (2, 10575060), (3, 7050040), (4, 5287530), (5, 4230024), (6, 3525020), (8, 2643765), (10, 2115012), (12, 1762510), (15, 1410008), (20, 1057506), (24, 881255), (30, 705004), (40, 528753), (60, 352502), (120, 176251), (337, 62760), (523, 40440), (674, 31380), (1011, 20920), (1046, 20220), (1348, 15690), (1569, 13480), (1685, 12552), (2022, 10460), (2092, 10110), (2615, 8088), (2696, 7845), (3138, 6740), (3370, 6276), (4044, 5230), (4184, 5055)]