18868336

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:497

約数の個数: 40

約数和(自身を含む): 38192000

約数和(自身を除く): 19323664

約数列:

[1, 2, 4, 8, 16, 31, 62, 109, 124, 218, 248, 349, 436, 496, 698, 872, 1396, 1744, 2792, 3379, 5584, 6758, 10819, 13516, 21638, 27032, 38041, 43276, 54064, 76082, 86552, 152164, 173104, 304328, 608656, 1179271, 2358542, 4717084, 9434168, 18868336]

約数ペア:

[(1, 18868336), (2, 9434168), (4, 4717084), (8, 2358542), (16, 1179271), (31, 608656), (62, 304328), (109, 173104), (124, 152164), (218, 86552), (248, 76082), (349, 54064), (436, 43276), (496, 38041), (698, 27032), (872, 21638), (1396, 13516), (1744, 10819), (2792, 6758), (3379, 5584)]