21002608

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2539}}^1$

素因数の和:2605

約数の個数: 40

約数和(自身を含む): 45354240

約数和(自身を除く): 24351632

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 47, 88, 94, 176, 188, 376, 517, 752, 1034, 2068, 2539, 4136, 5078, 8272, 10156, 20312, 27929, 40624, 55858, 111716, 119333, 223432, 238666, 446864, 477332, 954664, 1312663, 1909328, 2625326, 5250652, 10501304, 21002608]

約数ペア:

[(1, 21002608), (2, 10501304), (4, 5250652), (8, 2625326), (11, 1909328), (16, 1312663), (22, 954664), (44, 477332), (47, 446864), (88, 238666), (94, 223432), (176, 119333), (188, 111716), (376, 55858), (517, 40624), (752, 27929), (1034, 20312), (2068, 10156), (2539, 8272), (4136, 5078)]