21457631

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{797}}^1$

素因数の和:938

約数の個数: 16

約数和(自身を含む): 24578400

約数和(自身を除く): 3120769

約数列:

[1, 13, 19, 109, 247, 797, 1417, 2071, 10361, 15143, 26923, 86873, 196859, 1129349, 1650587, 21457631]

約数ペア:

[(1, 21457631), (13, 1650587), (19, 1129349), (109, 196859), (247, 86873), (797, 26923), (1417, 15143), (2071, 10361)]