21487270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3449}}^1$

素因数の和:3552

約数の個数: 32

約数和(自身を含む): 44712000

約数和(自身を除く): 23224730

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3115, 3449, 6230, 6898, 17245, 24143, 34490, 48286, 120715, 241430, 306961, 613922, 1534805, 2148727, 3069610, 4297454, 10743635, 21487270]

約数ペア:

[(1, 21487270), (2, 10743635), (5, 4297454), (7, 3069610), (10, 2148727), (14, 1534805), (35, 613922), (70, 306961), (89, 241430), (178, 120715), (445, 48286), (623, 34490), (890, 24143), (1246, 17245), (3115, 6898), (3449, 6230)]