18937125

素因数分解:

$3^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 36341760

約数和(自身を除く): 17404635

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 93, 125, 135, 155, 181, 225, 279, 375, 465, 543, 675, 775, 837, 905, 1125, 1395, 1629, 2325, 2715, 3375, 3875, 4185, 4525, 4887, 5611, 6975, 8145, 11625, 13575, 16833, 20925, 22625, 24435, 28055, 34875, 40725, 50499, 67875, 84165, 104625, 122175, 140275, 151497, 203625, 252495, 420825, 610875, 701375, 757485, 1262475, 2104125, 3787425, 6312375, 18937125]

約数ペア:

[(1, 18937125), (3, 6312375), (5, 3787425), (9, 2104125), (15, 1262475), (25, 757485), (27, 701375), (31, 610875), (45, 420825), (75, 252495), (93, 203625), (125, 151497), (135, 140275), (155, 122175), (181, 104625), (225, 84165), (279, 67875), (375, 50499), (465, 40725), (543, 34875), (675, 28055), (775, 24435), (837, 22625), (905, 20925), (1125, 16833), (1395, 13575), (1629, 11625), (2325, 8145), (2715, 6975), (3375, 5611), (3875, 4887), (4185, 4525)]