18121168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{87121}}^1$

素因数の和:87142

約数の個数: 20

約数和(自身を含む): 37810948

約数和(自身を除く): 19689780

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 87121, 174242, 348484, 696968, 1132573, 1393936, 2265146, 4530292, 9060584, 18121168]

約数ペア:

[(1, 18121168), (2, 9060584), (4, 4530292), (8, 2265146), (13, 1393936), (16, 1132573), (26, 696968), (52, 348484), (104, 174242), (208, 87121)]