21890096

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31817}}^1$

素因数の和:31868

約数の個数: 20

約数和(自身を含む): 43399752

約数和(自身を除く): 21509656

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31817, 63634, 127268, 254536, 509072, 1368131, 2736262, 5472524, 10945048, 21890096]

約数ペア:

[(1, 21890096), (2, 10945048), (4, 5472524), (8, 2736262), (16, 1368131), (43, 509072), (86, 254536), (172, 127268), (344, 63634), (688, 31817)]