2178998415

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{489113}}^1$

素因数の和:489141

約数の個数: 40

約数和(自身を含む): 4261161168

約数和(自身を除く): 2082162753

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4455, 489113, 1467339, 2445565, 4402017, 5380243, 7336695, 13206051, 16140729, 22010085, 26901215, 39618153, 48422187, 66030255, 80703645, 145266561, 198090765, 242110935, 435799683, 726332805, 2178998415]

約数ペア:

[(1, 2178998415), (3, 726332805), (5, 435799683), (9, 242110935), (11, 198090765), (15, 145266561), (27, 80703645), (33, 66030255), (45, 48422187), (55, 39618153), (81, 26901215), (99, 22010085), (135, 16140729), (165, 13206051), (297, 7336695), (405, 5380243), (495, 4402017), (891, 2445565), (1485, 1467339), (4455, 489113)]