21748560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90619}}^1$

素因数の和:90635

約数の個数: 40

約数和(自身を含む): 67421280

約数和(自身を除く): 45672720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90619, 181238, 271857, 362476, 453095, 543714, 724952, 906190, 1087428, 1359285, 1449904, 1812380, 2174856, 2718570, 3624760, 4349712, 5437140, 7249520, 10874280, 21748560]

約数ペア:

[(1, 21748560), (2, 10874280), (3, 7249520), (4, 5437140), (5, 4349712), (6, 3624760), (8, 2718570), (10, 2174856), (12, 1812380), (15, 1449904), (16, 1359285), (20, 1087428), (24, 906190), (30, 724952), (40, 543714), (48, 453095), (60, 362476), (80, 271857), (120, 181238), (240, 90619)]