21078226

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{9109}}^1$

素因数の和:9213

約数の個数: 16

約数和(自身を含む): 34435800

約数和(自身を除く): 13357574

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 9109, 18218, 118417, 236834, 810701, 1621402, 10539113, 21078226]

約数ペア:

[(1, 21078226), (2, 10539113), (13, 1621402), (26, 810701), (89, 236834), (178, 118417), (1157, 18218), (2314, 9109)]