18384736

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:515

約数の個数: 48

約数和(自身を含む): 38320128

約数和(自身を除く): 19935392

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 86, 124, 172, 248, 344, 431, 496, 688, 862, 992, 1333, 1376, 1724, 2666, 3448, 5332, 6896, 10664, 13361, 13792, 18533, 21328, 26722, 37066, 42656, 53444, 74132, 106888, 148264, 213776, 296528, 427552, 574523, 593056, 1149046, 2298092, 4596184, 9192368, 18384736]

約数ペア:

[(1, 18384736), (2, 9192368), (4, 4596184), (8, 2298092), (16, 1149046), (31, 593056), (32, 574523), (43, 427552), (62, 296528), (86, 213776), (124, 148264), (172, 106888), (248, 74132), (344, 53444), (431, 42656), (496, 37066), (688, 26722), (862, 21328), (992, 18533), (1333, 13792), (1376, 13361), (1724, 10664), (2666, 6896), (3448, 5332)]