21725554

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1\times {\mathrm{823}}^1$

素因数の和:1089

約数の個数: 16

約数和(自身を含む): 33283008

約数和(自身を除く): 11557454

約数列:

[1, 2, 67, 134, 197, 394, 823, 1646, 13199, 26398, 55141, 110282, 162131, 324262, 10862777, 21725554]

約数ペア:

[(1, 21725554), (2, 10862777), (67, 324262), (134, 162131), (197, 110282), (394, 55141), (823, 26398), (1646, 13199)]