21983312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6217}}^1$

素因数の和:6255

約数の個数: 40

約数和(自身を含む): 48575016

約数和(自身を除く): 26591704

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 6217, 12434, 24868, 49736, 80821, 99472, 105689, 161642, 211378, 323284, 422756, 646568, 845512, 1293136, 1373957, 1691024, 2747914, 5495828, 10991656, 21983312]

約数ペア:

[(1, 21983312), (2, 10991656), (4, 5495828), (8, 2747914), (13, 1691024), (16, 1373957), (17, 1293136), (26, 845512), (34, 646568), (52, 422756), (68, 323284), (104, 211378), (136, 161642), (208, 105689), (221, 99472), (272, 80821), (442, 49736), (884, 24868), (1768, 12434), (3536, 6217)]