20210909654

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1\times {\mathrm{22669}}^1$

素因数の和:23384

約数の個数: 32

約数和(自身を含む): 33317282880

約数和(自身を除く): 13106373226

約数列:

[1, 2, 13, 26, 53, 106, 647, 689, 1294, 1378, 8411, 16822, 22669, 34291, 45338, 68582, 294697, 445783, 589394, 891566, 1201457, 2402914, 14666843, 15618941, 29333686, 31237882, 190668959, 381337918, 777342679, 1554685358, 10105454827, 20210909654]

約数ペア:

[(1, 20210909654), (2, 10105454827), (13, 1554685358), (26, 777342679), (53, 381337918), (106, 190668959), (647, 31237882), (689, 29333686), (1294, 15618941), (1378, 14666843), (8411, 2402914), (16822, 1201457), (22669, 891566), (34291, 589394), (45338, 445783), (68582, 294697)]