278889377

素因数分解:

${\mathrm{13}}^3\times {\mathrm{61}}^1\times {\mathrm{2081}}^1$

素因数の和:2181

約数の個数: 16

約数和(自身を含む): 307219920

約数和(自身を除く): 28330543

約数列:

[1, 13, 61, 169, 793, 2081, 2197, 10309, 27053, 126941, 134017, 351689, 1650233, 4571957, 21453029, 278889377]

約数ペア:

[(1, 278889377), (13, 21453029), (61, 4571957), (169, 1650233), (793, 351689), (2081, 134017), (2197, 126941), (10309, 27053)]