21715998

素因数分解:

$2^1\times 3^1\times {\mathrm{173}}^1\times {\mathrm{20921}}^1$

素因数の和:21099

約数の個数: 16

約数和(自身を含む): 43685136

約数和(自身を除く): 21969138

約数列:

[1, 2, 3, 6, 173, 346, 519, 1038, 20921, 41842, 62763, 125526, 3619333, 7238666, 10857999, 21715998]

約数ペア:

[(1, 21715998), (2, 10857999), (3, 7238666), (6, 3619333), (173, 125526), (346, 62763), (519, 41842), (1038, 20921)]