21604140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6317}}^1$

素因数の和:6351

約数の個数: 72

約数和(自身を含む): 68992560

約数和(自身を除く): 47388420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 6317, 12634, 18951, 25268, 31585, 37902, 56853, 63170, 75804, 94755, 113706, 120023, 126340, 189510, 227412, 240046, 284265, 360069, 379020, 480092, 568530, 600115, 720138, 1080207, 1137060, 1200230, 1440276, 1800345, 2160414, 2400460, 3600690, 4320828, 5401035, 7201380, 10802070, 21604140]

約数ペア:

[(1, 21604140), (2, 10802070), (3, 7201380), (4, 5401035), (5, 4320828), (6, 3600690), (9, 2400460), (10, 2160414), (12, 1800345), (15, 1440276), (18, 1200230), (19, 1137060), (20, 1080207), (30, 720138), (36, 600115), (38, 568530), (45, 480092), (57, 379020), (60, 360069), (76, 284265), (90, 240046), (95, 227412), (114, 189510), (171, 126340), (180, 120023), (190, 113706), (228, 94755), (285, 75804), (342, 63170), (380, 56853), (570, 37902), (684, 31585), (855, 25268), (1140, 18951), (1710, 12634), (3420, 6317)]