21248214

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{823}}^1$

素因数の和:1172

約数の個数: 32

約数和(自身を含む): 45959424

約数和(自身を除く): 24711210

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 331, 662, 823, 993, 1646, 1986, 2469, 4303, 4938, 8606, 10699, 12909, 21398, 25818, 32097, 64194, 272413, 544826, 817239, 1634478, 3541369, 7082738, 10624107, 21248214]

約数ペア:

[(1, 21248214), (2, 10624107), (3, 7082738), (6, 3541369), (13, 1634478), (26, 817239), (39, 544826), (78, 272413), (331, 64194), (662, 32097), (823, 25818), (993, 21398), (1646, 12909), (1986, 10699), (2469, 8606), (4303, 4938)]