691398

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:620

約数の個数: 24

約数和(自身を含む): 1521936

約数和(自身を除く): 830538

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 541, 639, 1082, 1278, 1623, 3246, 4869, 9738, 38411, 76822, 115233, 230466, 345699, 691398]

約数ペア:

[(1, 691398), (2, 345699), (3, 230466), (6, 115233), (9, 76822), (18, 38411), (71, 9738), (142, 4869), (213, 3246), (426, 1623), (541, 1278), (639, 1082)]