21693295

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{4021}}^1$

素因数の和:4122

約数の個数: 16

約数和(自身を含む): 28379232

約数和(自身を除く): 6685937

約数列:

[1, 5, 13, 65, 83, 415, 1079, 4021, 5395, 20105, 52273, 261365, 333743, 1668715, 4338659, 21693295]

約数ペア:

[(1, 21693295), (5, 4338659), (13, 1668715), (65, 333743), (83, 261365), (415, 52273), (1079, 20105), (4021, 5395)]