21165802

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{16987}}^1$

素因数の和:17085

約数の個数: 16

約数和(自身を含む): 36694080

約数和(自身を除く): 15528278

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 16987, 33974, 118909, 237818, 1511843, 3023686, 10582901, 21165802]

約数ペア:

[(1, 21165802), (2, 10582901), (7, 3023686), (14, 1511843), (89, 237818), (178, 118909), (623, 33974), (1246, 16987)]