21897720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4679}}^1$

素因数の和:4709

約数の個数: 96

約数和(自身を含む): 76658400

約数和(自身を除く): 54760680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 180, 195, 234, 260, 312, 360, 390, 468, 520, 585, 780, 936, 1170, 1560, 2340, 4679, 4680, 9358, 14037, 18716, 23395, 28074, 37432, 42111, 46790, 56148, 60827, 70185, 84222, 93580, 112296, 121654, 140370, 168444, 182481, 187160, 210555, 243308, 280740, 304135, 336888, 364962, 421110, 486616, 547443, 561480, 608270, 729924, 842220, 912405, 1094886, 1216540, 1459848, 1684440, 1824810, 2189772, 2433080, 2737215, 3649620, 4379544, 5474430, 7299240, 10948860, 21897720]

約数ペア:

[(1, 21897720), (2, 10948860), (3, 7299240), (4, 5474430), (5, 4379544), (6, 3649620), (8, 2737215), (9, 2433080), (10, 2189772), (12, 1824810), (13, 1684440), (15, 1459848), (18, 1216540), (20, 1094886), (24, 912405), (26, 842220), (30, 729924), (36, 608270), (39, 561480), (40, 547443), (45, 486616), (52, 421110), (60, 364962), (65, 336888), (72, 304135), (78, 280740), (90, 243308), (104, 210555), (117, 187160), (120, 182481), (130, 168444), (156, 140370), (180, 121654), (195, 112296), (234, 93580), (260, 84222), (312, 70185), (360, 60827), (390, 56148), (468, 46790), (520, 42111), (585, 37432), (780, 28074), (936, 23395), (1170, 18716), (1560, 14037), (2340, 9358), (4679, 4680)]