20784150292

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{821}}^1\times {\mathrm{372289}}^1$

素因数の和:373131

約数の個数: 24

約数和(自身を含む): 38558819880

約数和(自身を除く): 17774669588

約数列:

[1, 2, 4, 17, 34, 68, 821, 1642, 3284, 13957, 27914, 55828, 372289, 744578, 1489156, 6328913, 12657826, 25315652, 305649269, 611298538, 1222597076, 5196037573, 10392075146, 20784150292]

約数ペア:

[(1, 20784150292), (2, 10392075146), (4, 5196037573), (17, 1222597076), (34, 611298538), (68, 305649269), (821, 25315652), (1642, 12657826), (3284, 6328913), (13957, 1489156), (27914, 744578), (55828, 372289)]