21681386490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{2729}}^1\times {\mathrm{264827}}^1$

素因数の和:267566

約数の個数: 32

約数和(自身を含む): 52054591680

約数和(自身を除く): 30373205190

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 2729, 5458, 8187, 13645, 16374, 27290, 40935, 81870, 264827, 529654, 794481, 1324135, 1588962, 2648270, 3972405, 7944810, 722712883, 1445425766, 2168138649, 3613564415, 4336277298, 7227128830, 10840693245, 21681386490]

約数ペア:

[(1, 21681386490), (2, 10840693245), (3, 7227128830), (5, 4336277298), (6, 3613564415), (10, 2168138649), (15, 1445425766), (30, 722712883), (2729, 7944810), (5458, 3972405), (8187, 2648270), (13645, 1588962), (16374, 1324135), (27290, 794481), (40935, 529654), (81870, 264827)]