19816281

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{593}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 29652480

約数和(自身を除く): 9836199

約数列:

[1, 3, 9, 47, 79, 141, 237, 423, 593, 711, 1779, 3713, 5337, 11139, 27871, 33417, 46847, 83613, 140541, 250839, 421623, 2201809, 6605427, 19816281]

約数ペア:

[(1, 19816281), (3, 6605427), (9, 2201809), (47, 421623), (79, 250839), (141, 140541), (237, 83613), (423, 46847), (593, 33417), (711, 27871), (1779, 11139), (3713, 5337)]