21373715

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{1697}}^1$

素因数の和:1942

約数の個数: 16

約数和(自身を含む): 28118880

約数和(自身を除く): 6745165

約数列:

[1, 5, 11, 55, 229, 1145, 1697, 2519, 8485, 12595, 18667, 93335, 388613, 1943065, 4274743, 21373715]

約数ペア:

[(1, 21373715), (5, 4274743), (11, 1943065), (55, 388613), (229, 93335), (1145, 18667), (1697, 12595), (2519, 8485)]