21808140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15803}}^1$

素因数の和:15838

約数の個数: 48

約数和(自身を含む): 63721728

約数和(自身を除く): 41913588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15803, 31606, 47409, 63212, 79015, 94818, 158030, 189636, 237045, 316060, 363469, 474090, 726938, 948180, 1090407, 1453876, 1817345, 2180814, 3634690, 4361628, 5452035, 7269380, 10904070, 21808140]

約数ペア:

[(1, 21808140), (2, 10904070), (3, 7269380), (4, 5452035), (5, 4361628), (6, 3634690), (10, 2180814), (12, 1817345), (15, 1453876), (20, 1090407), (23, 948180), (30, 726938), (46, 474090), (60, 363469), (69, 316060), (92, 237045), (115, 189636), (138, 158030), (230, 94818), (276, 79015), (345, 63212), (460, 47409), (690, 31606), (1380, 15803)]