18318516

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 44233728

約数和(自身を除く): 25915212

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 131, 172, 258, 262, 271, 393, 516, 524, 542, 786, 813, 1084, 1572, 1626, 3252, 5633, 11266, 11653, 16899, 22532, 23306, 33798, 34959, 35501, 46612, 67596, 69918, 71002, 106503, 139836, 142004, 213006, 426012, 1526543, 3053086, 4579629, 6106172, 9159258, 18318516]

約数ペア:

[(1, 18318516), (2, 9159258), (3, 6106172), (4, 4579629), (6, 3053086), (12, 1526543), (43, 426012), (86, 213006), (129, 142004), (131, 139836), (172, 106503), (258, 71002), (262, 69918), (271, 67596), (393, 46612), (516, 35501), (524, 34959), (542, 33798), (786, 23306), (813, 22532), (1084, 16899), (1572, 11653), (1626, 11266), (3252, 5633)]