18666255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1031}}^1$

素因数の和:1127

約数の個数: 32

約数和(自身を含む): 32099328

約数和(自身を除く): 13433073

約数列:

[1, 3, 5, 15, 17, 51, 71, 85, 213, 255, 355, 1031, 1065, 1207, 3093, 3621, 5155, 6035, 15465, 17527, 18105, 52581, 73201, 87635, 219603, 262905, 366005, 1098015, 1244417, 3733251, 6222085, 18666255]

約数ペア:

[(1, 18666255), (3, 6222085), (5, 3733251), (15, 1244417), (17, 1098015), (51, 366005), (71, 262905), (85, 219603), (213, 87635), (255, 73201), (355, 52581), (1031, 18105), (1065, 17527), (1207, 15465), (3093, 6035), (3621, 5155)]