18387765

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{307}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 35171136

約数和(自身を除く): 16783371

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 121, 165, 307, 363, 495, 605, 921, 1089, 1331, 1535, 1815, 2763, 3377, 3993, 4605, 5445, 6655, 10131, 11979, 13815, 16885, 19965, 30393, 37147, 50655, 59895, 111441, 151965, 185735, 334323, 408617, 557205, 1225851, 1671615, 2043085, 3677553, 6129255, 18387765]

約数ペア:

[(1, 18387765), (3, 6129255), (5, 3677553), (9, 2043085), (11, 1671615), (15, 1225851), (33, 557205), (45, 408617), (55, 334323), (99, 185735), (121, 151965), (165, 111441), (307, 59895), (363, 50655), (495, 37147), (605, 30393), (921, 19965), (1089, 16885), (1331, 13815), (1535, 11979), (1815, 10131), (2763, 6655), (3377, 5445), (3993, 4605)]