21281962

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1\times {\mathrm{997}}^1$

素因数の和:1833

約数の個数: 16

約数和(自身を含む): 34454952

約数和(自身を除く): 13172990

約数列:

[1, 2, 13, 26, 821, 997, 1642, 1994, 10673, 12961, 21346, 25922, 818537, 1637074, 10640981, 21281962]

約数ペア:

[(1, 21281962), (2, 10640981), (13, 1637074), (26, 818537), (821, 25922), (997, 21346), (1642, 12961), (1994, 10673)]