20853008

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1087}}^1$

素因数の和:1215

約数の個数: 40

約数和(自身を含む): 44520960

約数和(自身を除く): 23667952

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 109, 176, 218, 436, 872, 1087, 1199, 1744, 2174, 2398, 4348, 4796, 8696, 9592, 11957, 17392, 19184, 23914, 47828, 95656, 118483, 191312, 236966, 473932, 947864, 1303313, 1895728, 2606626, 5213252, 10426504, 20853008]

約数ペア:

[(1, 20853008), (2, 10426504), (4, 5213252), (8, 2606626), (11, 1895728), (16, 1303313), (22, 947864), (44, 473932), (88, 236966), (109, 191312), (176, 118483), (218, 95656), (436, 47828), (872, 23914), (1087, 19184), (1199, 17392), (1744, 11957), (2174, 9592), (2398, 8696), (4348, 4796)]