19993968

素因数分解:

$2^4\times 3^2\times {\mathrm{43}}^1\times {\mathrm{3229}}^1$

素因数の和:3286

約数の個数: 60

約数和(自身を含む): 57274360

約数和(自身を除く): 37280392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 43, 48, 72, 86, 129, 144, 172, 258, 344, 387, 516, 688, 774, 1032, 1548, 2064, 3096, 3229, 6192, 6458, 9687, 12916, 19374, 25832, 29061, 38748, 51664, 58122, 77496, 116244, 138847, 154992, 232488, 277694, 416541, 464976, 555388, 833082, 1110776, 1249623, 1666164, 2221552, 2499246, 3332328, 4998492, 6664656, 9996984, 19993968]

約数ペア:

[(1, 19993968), (2, 9996984), (3, 6664656), (4, 4998492), (6, 3332328), (8, 2499246), (9, 2221552), (12, 1666164), (16, 1249623), (18, 1110776), (24, 833082), (36, 555388), (43, 464976), (48, 416541), (72, 277694), (86, 232488), (129, 154992), (144, 138847), (172, 116244), (258, 77496), (344, 58122), (387, 51664), (516, 38748), (688, 29061), (774, 25832), (1032, 19374), (1548, 12916), (2064, 9687), (3096, 6458), (3229, 6192)]