19786538

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{1117}}^1$

素因数の和:1657

約数の個数: 16

約数和(自身を含む): 31514184

約数和(自身を除く): 11727646

約数列:

[1, 2, 17, 34, 521, 1042, 1117, 2234, 8857, 17714, 18989, 37978, 581957, 1163914, 9893269, 19786538]

約数ペア:

[(1, 19786538), (2, 9893269), (17, 1163914), (34, 581957), (521, 37978), (1042, 18989), (1117, 17714), (2234, 8857)]