19641964

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{491}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 35170128

約数和(自身を除く): 15528164

約数列:

[1, 2, 4, 73, 137, 146, 274, 292, 491, 548, 982, 1964, 10001, 20002, 35843, 40004, 67267, 71686, 134534, 143372, 269068, 4910491, 9820982, 19641964]

約数ペア:

[(1, 19641964), (2, 9820982), (4, 4910491), (73, 269068), (137, 143372), (146, 134534), (274, 71686), (292, 67267), (491, 40004), (548, 35843), (982, 20002), (1964, 10001)]