18118359

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 31749120

約数和(自身を除く): 13630761

約数列:

[1, 3, 7, 9, 21, 29, 47, 63, 87, 141, 203, 211, 261, 329, 423, 609, 633, 987, 1363, 1477, 1827, 1899, 2961, 4089, 4431, 6119, 9541, 9917, 12267, 13293, 18357, 28623, 29751, 42833, 55071, 69419, 85869, 89253, 128499, 208257, 287593, 385497, 624771, 862779, 2013151, 2588337, 6039453, 18118359]

約数ペア:

[(1, 18118359), (3, 6039453), (7, 2588337), (9, 2013151), (21, 862779), (29, 624771), (47, 385497), (63, 287593), (87, 208257), (141, 128499), (203, 89253), (211, 85869), (261, 69419), (329, 55071), (423, 42833), (609, 29751), (633, 28623), (987, 18357), (1363, 13293), (1477, 12267), (1827, 9917), (1899, 9541), (2961, 6119), (4089, 4431)]