21266704

素因数分解:

$2^4\times {\mathrm{191}}^1\times {\mathrm{6959}}^1$

素因数の和:7158

約数の個数: 20

約数和(自身を含む): 41425920

約数和(自身を除く): 20159216

約数列:

[1, 2, 4, 8, 16, 191, 382, 764, 1528, 3056, 6959, 13918, 27836, 55672, 111344, 1329169, 2658338, 5316676, 10633352, 21266704]

約数ペア:

[(1, 21266704), (2, 10633352), (4, 5316676), (8, 2658338), (16, 1329169), (191, 111344), (382, 55672), (764, 27836), (1528, 13918), (3056, 6959)]