18496665

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 36516480

約数和(自身を除く): 18019815

約数列:

[1, 3, 5, 9, 11, 15, 33, 43, 45, 55, 79, 99, 121, 129, 165, 215, 237, 363, 387, 395, 473, 495, 605, 645, 711, 869, 1089, 1185, 1419, 1815, 1935, 2365, 2607, 3397, 3555, 4257, 4345, 5203, 5445, 7095, 7821, 9559, 10191, 13035, 15609, 16985, 21285, 26015, 28677, 30573, 37367, 39105, 46827, 47795, 50955, 78045, 86031, 112101, 143385, 152865, 186835, 234135, 336303, 411037, 430155, 560505, 1233111, 1681515, 2055185, 3699333, 6165555, 18496665]

約数ペア:

[(1, 18496665), (3, 6165555), (5, 3699333), (9, 2055185), (11, 1681515), (15, 1233111), (33, 560505), (43, 430155), (45, 411037), (55, 336303), (79, 234135), (99, 186835), (121, 152865), (129, 143385), (165, 112101), (215, 86031), (237, 78045), (363, 50955), (387, 47795), (395, 46827), (473, 39105), (495, 37367), (605, 30573), (645, 28677), (711, 26015), (869, 21285), (1089, 16985), (1185, 15609), (1419, 13035), (1815, 10191), (1935, 9559), (2365, 7821), (2607, 7095), (3397, 5445), (3555, 5203), (4257, 4345)]