21530704

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6089}}^1$

素因数の和:6127

約数の個数: 40

約数和(自身を含む): 47575080

約数和(自身を除く): 26044376

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 6089, 12178, 24356, 48712, 79157, 97424, 103513, 158314, 207026, 316628, 414052, 633256, 828104, 1266512, 1345669, 1656208, 2691338, 5382676, 10765352, 21530704]

約数ペア:

[(1, 21530704), (2, 10765352), (4, 5382676), (8, 2691338), (13, 1656208), (16, 1345669), (17, 1266512), (26, 828104), (34, 633256), (52, 414052), (68, 316628), (104, 207026), (136, 158314), (208, 103513), (221, 97424), (272, 79157), (442, 48712), (884, 24356), (1768, 12178), (3536, 6089)]