18355538

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{1021}}^1$

素因数の和:1213

約数の個数: 16

約数和(自身を含む): 28145880

約数和(自身を除く): 9790342

約数列:

[1, 2, 89, 101, 178, 202, 1021, 2042, 8989, 17978, 90869, 103121, 181738, 206242, 9177769, 18355538]

約数ペア:

[(1, 18355538), (2, 9177769), (89, 206242), (101, 181738), (178, 103121), (202, 90869), (1021, 17978), (2042, 8989)]