18306904

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 43338240

約数和(自身を除く): 25031336

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 113, 154, 226, 263, 308, 452, 526, 616, 791, 904, 1052, 1243, 1582, 1841, 2104, 2486, 2893, 3164, 3682, 4972, 5786, 6328, 7364, 8701, 9944, 11572, 14728, 17402, 20251, 23144, 29719, 34804, 40502, 59438, 69608, 81004, 118876, 162008, 208033, 237752, 326909, 416066, 653818, 832132, 1307636, 1664264, 2288363, 2615272, 4576726, 9153452, 18306904]

約数ペア:

[(1, 18306904), (2, 9153452), (4, 4576726), (7, 2615272), (8, 2288363), (11, 1664264), (14, 1307636), (22, 832132), (28, 653818), (44, 416066), (56, 326909), (77, 237752), (88, 208033), (113, 162008), (154, 118876), (226, 81004), (263, 69608), (308, 59438), (452, 40502), (526, 34804), (616, 29719), (791, 23144), (904, 20251), (1052, 17402), (1243, 14728), (1582, 11572), (1841, 9944), (2104, 8701), (2486, 7364), (2893, 6328), (3164, 5786), (3682, 4972)]