21223160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{75797}}^1$

素因数の和:75815

約数の個数: 32

約数和(自身を含む): 54574560

約数和(自身を除く): 33351400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 75797, 151594, 303188, 378985, 530579, 606376, 757970, 1061158, 1515940, 2122316, 2652895, 3031880, 4244632, 5305790, 10611580, 21223160]

約数ペア:

[(1, 21223160), (2, 10611580), (4, 5305790), (5, 4244632), (7, 3031880), (8, 2652895), (10, 2122316), (14, 1515940), (20, 1061158), (28, 757970), (35, 606376), (40, 530579), (56, 378985), (70, 303188), (140, 151594), (280, 75797)]