21827728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6173}}^1$

素因数の和:6211

約数の個数: 40

約数和(自身を含む): 48231288

約数和(自身を除く): 26403560

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 6173, 12346, 24692, 49384, 80249, 98768, 104941, 160498, 209882, 320996, 419764, 641992, 839528, 1283984, 1364233, 1679056, 2728466, 5456932, 10913864, 21827728]

約数ペア:

[(1, 21827728), (2, 10913864), (4, 5456932), (8, 2728466), (13, 1679056), (16, 1364233), (17, 1283984), (26, 839528), (34, 641992), (52, 419764), (68, 320996), (104, 209882), (136, 160498), (208, 104941), (221, 98768), (272, 80249), (442, 49384), (884, 24692), (1768, 12346), (3536, 6173)]