18921375

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^2\times {\mathrm{139}}^1$

素因数の和:182

約数の個数: 72

約数和(自身を含む): 37761360

約数和(自身を除く): 18839985

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 121, 125, 139, 165, 225, 275, 363, 375, 417, 495, 605, 695, 825, 1089, 1125, 1251, 1375, 1529, 1815, 2085, 2475, 3025, 3475, 4125, 4587, 5445, 6255, 7645, 9075, 10425, 12375, 13761, 15125, 16819, 17375, 22935, 27225, 31275, 38225, 45375, 50457, 52125, 68805, 84095, 114675, 136125, 151371, 156375, 191125, 252285, 344025, 420475, 573375, 756855, 1261425, 1720125, 2102375, 3784275, 6307125, 18921375]

約数ペア:

[(1, 18921375), (3, 6307125), (5, 3784275), (9, 2102375), (11, 1720125), (15, 1261425), (25, 756855), (33, 573375), (45, 420475), (55, 344025), (75, 252285), (99, 191125), (121, 156375), (125, 151371), (139, 136125), (165, 114675), (225, 84095), (275, 68805), (363, 52125), (375, 50457), (417, 45375), (495, 38225), (605, 31275), (695, 27225), (825, 22935), (1089, 17375), (1125, 16819), (1251, 15125), (1375, 13761), (1529, 12375), (1815, 10425), (2085, 9075), (2475, 7645), (3025, 6255), (3475, 5445), (4125, 4587)]