21911253

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{967}}^1$

素因数の和:1073

約数の個数: 32

約数和(自身を含む): 36427776

約数和(自身を除く): 14516523

約数列:

[1, 3, 7, 13, 21, 39, 83, 91, 249, 273, 581, 967, 1079, 1743, 2901, 3237, 6769, 7553, 12571, 20307, 22659, 37713, 80261, 87997, 240783, 263991, 561827, 1043393, 1685481, 3130179, 7303751, 21911253]

約数ペア:

[(1, 21911253), (3, 7303751), (7, 3130179), (13, 1685481), (21, 1043393), (39, 561827), (83, 263991), (91, 240783), (249, 87997), (273, 80261), (581, 37713), (967, 22659), (1079, 20307), (1743, 12571), (2901, 7553), (3237, 6769)]