21525700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:242

約数の個数: 108

約数和(自身を含む): 56996352

約数和(自身を除く): 35470652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 49, 50, 70, 92, 98, 100, 115, 140, 161, 175, 191, 196, 230, 245, 322, 350, 382, 460, 490, 575, 644, 700, 764, 805, 955, 980, 1127, 1150, 1225, 1337, 1610, 1910, 2254, 2300, 2450, 2674, 3220, 3820, 4025, 4393, 4508, 4775, 4900, 5348, 5635, 6685, 8050, 8786, 9359, 9550, 11270, 13370, 16100, 17572, 18718, 19100, 21965, 22540, 26740, 28175, 30751, 33425, 37436, 43930, 46795, 56350, 61502, 66850, 87860, 93590, 109825, 112700, 123004, 133700, 153755, 187180, 215257, 219650, 233975, 307510, 430514, 439300, 467950, 615020, 768775, 861028, 935900, 1076285, 1537550, 2152570, 3075100, 4305140, 5381425, 10762850, 21525700]

約数ペア:

[(1, 21525700), (2, 10762850), (4, 5381425), (5, 4305140), (7, 3075100), (10, 2152570), (14, 1537550), (20, 1076285), (23, 935900), (25, 861028), (28, 768775), (35, 615020), (46, 467950), (49, 439300), (50, 430514), (70, 307510), (92, 233975), (98, 219650), (100, 215257), (115, 187180), (140, 153755), (161, 133700), (175, 123004), (191, 112700), (196, 109825), (230, 93590), (245, 87860), (322, 66850), (350, 61502), (382, 56350), (460, 46795), (490, 43930), (575, 37436), (644, 33425), (700, 30751), (764, 28175), (805, 26740), (955, 22540), (980, 21965), (1127, 19100), (1150, 18718), (1225, 17572), (1337, 16100), (1610, 13370), (1910, 11270), (2254, 9550), (2300, 9359), (2450, 8786), (2674, 8050), (3220, 6685), (3820, 5635), (4025, 5348), (4393, 4900), (4508, 4775)]