21249943

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{821}}^1$

素因数の和:1026

約数の個数: 16

約数和(自身を含む): 25133472

約数和(自身を除く): 3883529

約数列:

[1, 11, 13, 143, 181, 821, 1991, 2353, 9031, 10673, 25883, 117403, 148601, 1634611, 1931813, 21249943]

約数ペア:

[(1, 21249943), (11, 1931813), (13, 1634611), (143, 148601), (181, 117403), (821, 25883), (1991, 10673), (2353, 9031)]