18487377

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 29872128

約数和(自身を除く): 11384751

約数列:

[1, 3, 9, 23, 31, 43, 67, 69, 93, 129, 201, 207, 279, 387, 603, 713, 989, 1333, 1541, 2077, 2139, 2881, 2967, 3999, 4623, 6231, 6417, 8643, 8901, 11997, 13869, 18693, 25929, 30659, 47771, 66263, 89311, 91977, 143313, 198789, 267933, 275931, 429939, 596367, 803799, 2054153, 6162459, 18487377]

約数ペア:

[(1, 18487377), (3, 6162459), (9, 2054153), (23, 803799), (31, 596367), (43, 429939), (67, 275931), (69, 267933), (93, 198789), (129, 143313), (201, 91977), (207, 89311), (279, 66263), (387, 47771), (603, 30659), (713, 25929), (989, 18693), (1333, 13869), (1541, 11997), (2077, 8901), (2139, 8643), (2881, 6417), (2967, 6231), (3999, 4623)]