21220624

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{78017}}^1$

素因数の和:78042

約数の個数: 20

約数和(自身を含む): 43534044

約数和(自身を除く): 22313420

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 78017, 156034, 312068, 624136, 1248272, 1326289, 2652578, 5305156, 10610312, 21220624]

約数ペア:

[(1, 21220624), (2, 10610312), (4, 5305156), (8, 2652578), (16, 1326289), (17, 1248272), (34, 624136), (68, 312068), (136, 156034), (272, 78017)]