21156464

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1733}}^1$

素因数の和:1857

約数の個数: 40

約数和(自身を含む): 47303520

約数和(自身を除く): 26147056

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1733, 1744, 3052, 3466, 6104, 6932, 12131, 12208, 13864, 24262, 27728, 48524, 97048, 188897, 194096, 377794, 755588, 1322279, 1511176, 2644558, 3022352, 5289116, 10578232, 21156464]

約数ペア:

[(1, 21156464), (2, 10578232), (4, 5289116), (7, 3022352), (8, 2644558), (14, 1511176), (16, 1322279), (28, 755588), (56, 377794), (109, 194096), (112, 188897), (218, 97048), (436, 48524), (763, 27728), (872, 24262), (1526, 13864), (1733, 12208), (1744, 12131), (3052, 6932), (3466, 6104)]