21017520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29191}}^1$

素因数の和:29210

約数の個数: 60

約数和(自身を含む): 70586256

約数和(自身を除く): 49568736

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29191, 58382, 87573, 116764, 145955, 175146, 233528, 262719, 291910, 350292, 437865, 467056, 525438, 583820, 700584, 875730, 1050876, 1167640, 1313595, 1401168, 1751460, 2101752, 2335280, 2627190, 3502920, 4203504, 5254380, 7005840, 10508760, 21017520]

約数ペア:

[(1, 21017520), (2, 10508760), (3, 7005840), (4, 5254380), (5, 4203504), (6, 3502920), (8, 2627190), (9, 2335280), (10, 2101752), (12, 1751460), (15, 1401168), (16, 1313595), (18, 1167640), (20, 1050876), (24, 875730), (30, 700584), (36, 583820), (40, 525438), (45, 467056), (48, 437865), (60, 350292), (72, 291910), (80, 262719), (90, 233528), (120, 175146), (144, 145955), (180, 116764), (240, 87573), (360, 58382), (720, 29191)]