18138015

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{811}}^1$

素因数の和:900

約数の個数: 48

約数和(自身を含む): 36481536

約数和(自身を除く): 18343521

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 105, 213, 315, 355, 497, 639, 811, 1065, 1491, 2433, 2485, 3195, 4055, 4473, 5677, 7299, 7455, 12165, 17031, 22365, 28385, 36495, 51093, 57581, 85155, 172743, 255465, 287905, 403067, 518229, 863715, 1209201, 2015335, 2591145, 3627603, 6046005, 18138015]

約数ペア:

[(1, 18138015), (3, 6046005), (5, 3627603), (7, 2591145), (9, 2015335), (15, 1209201), (21, 863715), (35, 518229), (45, 403067), (63, 287905), (71, 255465), (105, 172743), (213, 85155), (315, 57581), (355, 51093), (497, 36495), (639, 28385), (811, 22365), (1065, 17031), (1491, 12165), (2433, 7455), (2485, 7299), (3195, 5677), (4055, 4473)]