215518666

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 368676000

約数和(自身を除く): 153157334

約数列:

[1, 2, 11, 22, 43, 86, 121, 139, 149, 242, 278, 298, 473, 946, 1529, 1639, 3058, 3278, 5203, 5977, 6407, 10406, 11954, 12814, 16819, 18029, 20711, 33638, 36058, 41422, 65747, 70477, 131494, 140954, 227821, 455642, 723217, 775247, 890573, 1446434, 1550494, 1781146, 2506031, 5012062, 9796303, 19592606, 107759333, 215518666]

約数ペア:

[(1, 215518666), (2, 107759333), (11, 19592606), (22, 9796303), (43, 5012062), (86, 2506031), (121, 1781146), (139, 1550494), (149, 1446434), (242, 890573), (278, 775247), (298, 723217), (473, 455642), (946, 227821), (1529, 140954), (1639, 131494), (3058, 70477), (3278, 65747), (5203, 41422), (5977, 36058), (6407, 33638), (10406, 20711), (11954, 18029), (12814, 16819)]