21664620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5233}}^1$

素因数の和:5271

約数の個数: 72

約数和(自身を含む): 68586336

約数和(自身を除く): 46921716

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 5233, 10466, 15699, 20932, 26165, 31398, 47097, 52330, 62796, 78495, 94194, 104660, 120359, 156990, 188388, 235485, 240718, 313980, 361077, 470970, 481436, 601795, 722154, 941940, 1083231, 1203590, 1444308, 1805385, 2166462, 2407180, 3610770, 4332924, 5416155, 7221540, 10832310, 21664620]

約数ペア:

[(1, 21664620), (2, 10832310), (3, 7221540), (4, 5416155), (5, 4332924), (6, 3610770), (9, 2407180), (10, 2166462), (12, 1805385), (15, 1444308), (18, 1203590), (20, 1083231), (23, 941940), (30, 722154), (36, 601795), (45, 481436), (46, 470970), (60, 361077), (69, 313980), (90, 240718), (92, 235485), (115, 188388), (138, 156990), (180, 120359), (207, 104660), (230, 94194), (276, 78495), (345, 62796), (414, 52330), (460, 47097), (690, 31398), (828, 26165), (1035, 20932), (1380, 15699), (2070, 10466), (4140, 5233)]