21901820540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{35325517}}^1$

素因数の和:35325557

約数の個数: 24

約数和(自身を含む): 47477496192

約数和(自身を除く): 25575675652

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 35325517, 70651034, 141302068, 176627585, 353255170, 706510340, 1095091027, 2190182054, 4380364108, 5475455135, 10950910270, 21901820540]

約数ペア:

[(1, 21901820540), (2, 10950910270), (4, 5475455135), (5, 4380364108), (10, 2190182054), (20, 1095091027), (31, 706510340), (62, 353255170), (124, 176627585), (155, 141302068), (310, 70651034), (620, 35325517)]