218974775

素因数分解:

$5^2\times {\mathrm{271}}^1\times {\mathrm{32321}}^1$

素因数の和:32602

約数の個数: 12

約数和(自身を含む): 272539104

約数和(自身を除く): 53564329

約数列:

[1, 5, 25, 271, 1355, 6775, 32321, 161605, 808025, 8758991, 43794955, 218974775]

約数ペア:

[(1, 218974775), (5, 43794955), (25, 8758991), (271, 808025), (1355, 161605), (6775, 32321)]