18783387

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 34560000

約数和(自身を除く): 15776613

約数列:

[1, 3, 7, 9, 21, 23, 27, 29, 63, 69, 87, 149, 161, 189, 203, 207, 261, 447, 483, 609, 621, 667, 783, 1043, 1341, 1449, 1827, 2001, 3129, 3427, 4023, 4321, 4347, 4669, 5481, 6003, 9387, 10281, 12963, 14007, 18009, 23989, 28161, 30247, 30843, 38889, 42021, 71967, 90741, 92529, 99383, 116667, 126063, 215901, 272223, 298149, 647703, 695681, 816669, 894447, 2087043, 2683341, 6261129, 18783387]

約数ペア:

[(1, 18783387), (3, 6261129), (7, 2683341), (9, 2087043), (21, 894447), (23, 816669), (27, 695681), (29, 647703), (63, 298149), (69, 272223), (87, 215901), (149, 126063), (161, 116667), (189, 99383), (203, 92529), (207, 90741), (261, 71967), (447, 42021), (483, 38889), (609, 30843), (621, 30247), (667, 28161), (783, 23989), (1043, 18009), (1341, 14007), (1449, 12963), (1827, 10281), (2001, 9387), (3129, 6003), (3427, 5481), (4023, 4669), (4321, 4347)]