21105120

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43969}}^1$

素因数の和:43987

約数の個数: 48

約数和(自身を含む): 66482640

約数和(自身を除く): 45377520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 43969, 87938, 131907, 175876, 219845, 263814, 351752, 439690, 527628, 659535, 703504, 879380, 1055256, 1319070, 1407008, 1758760, 2110512, 2638140, 3517520, 4221024, 5276280, 7035040, 10552560, 21105120]

約数ペア:

[(1, 21105120), (2, 10552560), (3, 7035040), (4, 5276280), (5, 4221024), (6, 3517520), (8, 2638140), (10, 2110512), (12, 1758760), (15, 1407008), (16, 1319070), (20, 1055256), (24, 879380), (30, 703504), (32, 659535), (40, 527628), (48, 439690), (60, 351752), (80, 263814), (96, 219845), (120, 175876), (160, 131907), (240, 87938), (480, 43969)]