261722721

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{163679}}^1$

素因数の和:163736

約数の個数: 16

約数和(自身を含む): 384975360

約数和(自身を除く): 123252639

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 163679, 491037, 2127827, 6383481, 6710839, 20132517, 87240907, 261722721]

約数ペア:

[(1, 261722721), (3, 87240907), (13, 20132517), (39, 6710839), (41, 6383481), (123, 2127827), (533, 491037), (1599, 163679)]