21152261

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{719}}^1$

素因数の和:836

約数の個数: 16

約数和(自身を含む): 23869440

約数和(自身を除く): 2717179

約数列:

[1, 13, 31, 73, 403, 719, 949, 2263, 9347, 22289, 29419, 52487, 289757, 682331, 1627097, 21152261]

約数ペア:

[(1, 21152261), (13, 1627097), (31, 682331), (73, 289757), (403, 52487), (719, 29419), (949, 22289), (2263, 9347)]