17938810

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4261}}^1$

素因数の和:4689

約数の個数: 16

約数和(自身を含む): 32374152

約数和(自身を除く): 14435342

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 4261, 8522, 21305, 42610, 1793881, 3587762, 8969405, 17938810]

約数ペア:

[(1, 17938810), (2, 8969405), (5, 3587762), (10, 1793881), (421, 42610), (842, 21305), (2105, 8522), (4210, 4261)]