21214311

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{617}}^1$

素因数の和:850

約数の個数: 16

約数和(自身を含む): 28902624

約数和(自身を除く): 7688313

約数列:

[1, 3, 73, 157, 219, 471, 617, 1851, 11461, 34383, 45041, 96869, 135123, 290607, 7071437, 21214311]

約数ペア:

[(1, 21214311), (3, 7071437), (73, 290607), (157, 135123), (219, 96869), (471, 45041), (617, 34383), (1851, 11461)]