21672751

素因数分解:

${\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:322

約数の個数: 16

約数和(自身を含む): 23196928

約数和(自身を除く): 1524177

約数列:

[1, 31, 61, 73, 157, 1891, 2263, 4453, 4867, 9577, 11461, 138043, 296887, 355291, 699121, 21672751]

約数ペア:

[(1, 21672751), (31, 699121), (61, 355291), (73, 296887), (157, 138043), (1891, 11461), (2263, 9577), (4453, 4867)]