129439681

素因数分解:

$7^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1\times {\mathrm{821}}^1$

素因数の和:1152

約数の個数: 16

約数和(自身を含む): 150248448

約数和(自身を除く): 20808767

約数列:

[1, 7, 101, 223, 707, 821, 1561, 5747, 22523, 82921, 157661, 183083, 580447, 1281581, 18491383, 129439681]

約数ペア:

[(1, 129439681), (7, 18491383), (101, 1281581), (223, 580447), (707, 183083), (821, 157661), (1561, 82921), (5747, 22523)]