19800539

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1283}}^1$

素因数の和:1378

約数の個数: 16

約数和(自身を含む): 22927104

約数和(自身を除く): 3126565

約数列:

[1, 11, 23, 61, 253, 671, 1283, 1403, 14113, 15433, 29509, 78263, 324599, 860893, 1800049, 19800539]

約数ペア:

[(1, 19800539), (11, 1800049), (23, 860893), (61, 324599), (253, 78263), (671, 29509), (1283, 15433), (1403, 14113)]