19713825

素因数分解:

$3^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2137}}^1$

素因数の和:2194

約数の個数: 36

約数和(自身を含む): 36187788

約数和(自身を除く): 16473963

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 123, 205, 225, 369, 615, 1025, 1845, 2137, 3075, 6411, 9225, 10685, 19233, 32055, 53425, 87617, 96165, 160275, 262851, 438085, 480825, 788553, 1314255, 2190425, 3942765, 6571275, 19713825]

約数ペア:

[(1, 19713825), (3, 6571275), (5, 3942765), (9, 2190425), (15, 1314255), (25, 788553), (41, 480825), (45, 438085), (75, 262851), (123, 160275), (205, 96165), (225, 87617), (369, 53425), (615, 32055), (1025, 19233), (1845, 10685), (2137, 9225), (3075, 6411)]