18856125

素因数分解:

$3^3\times 5^3\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 36042240

約数和(自身を除く): 17186115

約数列:

[1, 3, 5, 9, 15, 25, 27, 37, 45, 75, 111, 125, 135, 151, 185, 225, 333, 375, 453, 555, 675, 755, 925, 999, 1125, 1359, 1665, 2265, 2775, 3375, 3775, 4077, 4625, 4995, 5587, 6795, 8325, 11325, 13875, 16761, 18875, 20385, 24975, 27935, 33975, 41625, 50283, 56625, 83805, 101925, 124875, 139675, 150849, 169875, 251415, 419025, 509625, 698375, 754245, 1257075, 2095125, 3771225, 6285375, 18856125]

約数ペア:

[(1, 18856125), (3, 6285375), (5, 3771225), (9, 2095125), (15, 1257075), (25, 754245), (27, 698375), (37, 509625), (45, 419025), (75, 251415), (111, 169875), (125, 150849), (135, 139675), (151, 124875), (185, 101925), (225, 83805), (333, 56625), (375, 50283), (453, 41625), (555, 33975), (675, 27935), (755, 24975), (925, 20385), (999, 18875), (1125, 16761), (1359, 13875), (1665, 11325), (2265, 8325), (2775, 6795), (3375, 5587), (3775, 4995), (4077, 4625)]