21000835451

素因数分解:

${\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{138319}}^1$

素因数の和:138530

約数の個数: 16

約数和(自身を含む): 22640217600

約数和(自身を除く): 1639382149

約数列:

[1, 19, 61, 131, 1159, 2489, 7991, 138319, 151829, 2628061, 8437459, 18119789, 160311721, 344275991, 1105307129, 21000835451]

約数ペア:

[(1, 21000835451), (19, 1105307129), (61, 344275991), (131, 160311721), (1159, 18119789), (2489, 8437459), (7991, 2628061), (138319, 151829)]