21118920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{175991}}^1$

素因数の和:176005

約数の個数: 32

約数和(自身を含む): 63357120

約数和(自身を除く): 42238200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 175991, 351982, 527973, 703964, 879955, 1055946, 1407928, 1759910, 2111892, 2639865, 3519820, 4223784, 5279730, 7039640, 10559460, 21118920]

約数ペア:

[(1, 21118920), (2, 10559460), (3, 7039640), (4, 5279730), (5, 4223784), (6, 3519820), (8, 2639865), (10, 2111892), (12, 1759910), (15, 1407928), (20, 1055946), (24, 879955), (30, 703964), (40, 527973), (60, 351982), (120, 175991)]