18733275

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2$

素因数の和:91

約数の個数: 90

約数和(自身を含む): 39205452

約数和(自身を除く): 20472177

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 29, 33, 45, 55, 75, 81, 87, 99, 135, 145, 165, 225, 261, 275, 297, 319, 405, 435, 495, 675, 725, 783, 825, 841, 891, 957, 1305, 1485, 1595, 2025, 2175, 2349, 2475, 2523, 2871, 3915, 4205, 4455, 4785, 6525, 7425, 7569, 7975, 8613, 9251, 11745, 12615, 14355, 19575, 21025, 22275, 22707, 23925, 25839, 27753, 37845, 43065, 46255, 58725, 63075, 68121, 71775, 83259, 113535, 129195, 138765, 189225, 215325, 231275, 249777, 340605, 416295, 567675, 645975, 693825, 749331, 1248885, 1703025, 2081475, 3746655, 6244425, 18733275]

約数ペア:

[(1, 18733275), (3, 6244425), (5, 3746655), (9, 2081475), (11, 1703025), (15, 1248885), (25, 749331), (27, 693825), (29, 645975), (33, 567675), (45, 416295), (55, 340605), (75, 249777), (81, 231275), (87, 215325), (99, 189225), (135, 138765), (145, 129195), (165, 113535), (225, 83259), (261, 71775), (275, 68121), (297, 63075), (319, 58725), (405, 46255), (435, 43065), (495, 37845), (675, 27753), (725, 25839), (783, 23925), (825, 22707), (841, 22275), (891, 21025), (957, 19575), (1305, 14355), (1485, 12615), (1595, 11745), (2025, 9251), (2175, 8613), (2349, 7975), (2475, 7569), (2523, 7425), (2871, 6525), (3915, 4785), (4205, 4455)]