18145988

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1483}}^1$

素因数の和:1536

約数の個数: 48

約数和(自身を含む): 39889920

約数和(自身を除く): 21743932

約数列:

[1, 2, 4, 7, 14, 19, 23, 28, 38, 46, 76, 92, 133, 161, 266, 322, 437, 532, 644, 874, 1483, 1748, 2966, 3059, 5932, 6118, 10381, 12236, 20762, 28177, 34109, 41524, 56354, 68218, 112708, 136436, 197239, 238763, 394478, 477526, 648071, 788956, 955052, 1296142, 2592284, 4536497, 9072994, 18145988]

約数ペア:

[(1, 18145988), (2, 9072994), (4, 4536497), (7, 2592284), (14, 1296142), (19, 955052), (23, 788956), (28, 648071), (38, 477526), (46, 394478), (76, 238763), (92, 197239), (133, 136436), (161, 112708), (266, 68218), (322, 56354), (437, 41524), (532, 34109), (644, 28177), (874, 20762), (1483, 12236), (1748, 10381), (2966, 6118), (3059, 5932)]