21157834

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1\times {\mathrm{571}}^1$

素因数の和:861

約数の個数: 16

約数和(自身を含む): 32288256

約数和(自身を除く): 11130422

約数列:

[1, 2, 97, 191, 194, 382, 571, 1142, 18527, 37054, 55387, 109061, 110774, 218122, 10578917, 21157834]

約数ペア:

[(1, 21157834), (2, 10578917), (97, 218122), (191, 110774), (194, 109061), (382, 55387), (571, 37054), (1142, 18527)]