21263528

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18587}}^1$

素因数の和:18617

約数の個数: 32

約数和(自身を含む): 46841760

約数和(自身を除く): 25578232

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18587, 37174, 74348, 148696, 204457, 241631, 408914, 483262, 817828, 966524, 1635656, 1933048, 2657941, 5315882, 10631764, 21263528]

約数ペア:

[(1, 21263528), (2, 10631764), (4, 5315882), (8, 2657941), (11, 1933048), (13, 1635656), (22, 966524), (26, 817828), (44, 483262), (52, 408914), (88, 241631), (104, 204457), (143, 148696), (286, 74348), (572, 37174), (1144, 18587)]