81972315

素因数分解:

$3^2\times 5^1\times {\mathrm{607}}^1\times {\mathrm{3001}}^1$

素因数の和:3619

約数の個数: 24

約数和(自身を含む): 142366848

約数和(自身を除く): 60394533

約数列:

[1, 3, 5, 9, 15, 45, 607, 1821, 3001, 3035, 5463, 9003, 9105, 15005, 27009, 27315, 45015, 135045, 1821607, 5464821, 9108035, 16394463, 27324105, 81972315]

約数ペア:

[(1, 81972315), (3, 27324105), (5, 16394463), (9, 9108035), (15, 5464821), (45, 1821607), (607, 135045), (1821, 45015), (3001, 27315), (3035, 27009), (5463, 15005), (9003, 9105)]