18781386

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:108

約数の個数: 96

約数和(自身を含む): 46085760

約数和(自身を除く): 27304374

約数列:

[1, 2, 3, 6, 13, 19, 23, 26, 29, 38, 39, 46, 57, 58, 69, 78, 87, 114, 138, 174, 247, 299, 361, 377, 437, 494, 551, 598, 667, 722, 741, 754, 874, 897, 1083, 1102, 1131, 1311, 1334, 1482, 1653, 1794, 2001, 2166, 2262, 2622, 3306, 4002, 4693, 5681, 7163, 8303, 8671, 9386, 10469, 11362, 12673, 14079, 14326, 16606, 17043, 17342, 20938, 21489, 24909, 25346, 26013, 28158, 31407, 34086, 38019, 42978, 49818, 52026, 62814, 76038, 107939, 136097, 164749, 215878, 240787, 272194, 323817, 329498, 408291, 481574, 494247, 647634, 722361, 816582, 988494, 1444722, 3130231, 6260462, 9390693, 18781386]

約数ペア:

[(1, 18781386), (2, 9390693), (3, 6260462), (6, 3130231), (13, 1444722), (19, 988494), (23, 816582), (26, 722361), (29, 647634), (38, 494247), (39, 481574), (46, 408291), (57, 329498), (58, 323817), (69, 272194), (78, 240787), (87, 215878), (114, 164749), (138, 136097), (174, 107939), (247, 76038), (299, 62814), (361, 52026), (377, 49818), (437, 42978), (494, 38019), (551, 34086), (598, 31407), (667, 28158), (722, 26013), (741, 25346), (754, 24909), (874, 21489), (897, 20938), (1083, 17342), (1102, 17043), (1131, 16606), (1311, 14326), (1334, 14079), (1482, 12673), (1653, 11362), (1794, 10469), (2001, 9386), (2166, 8671), (2262, 8303), (2622, 7163), (3306, 5681), (4002, 4693)]