21150240

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{317}}^1$

素因数の和:474

約数の個数: 96

約数和(自身を含む): 67314240

約数和(自身を除く): 46164000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 139, 160, 240, 278, 317, 417, 480, 556, 634, 695, 834, 951, 1112, 1268, 1390, 1585, 1668, 1902, 2085, 2224, 2536, 2780, 3170, 3336, 3804, 4170, 4448, 4755, 5072, 5560, 6340, 6672, 7608, 8340, 9510, 10144, 11120, 12680, 13344, 15216, 16680, 19020, 22240, 25360, 30432, 33360, 38040, 44063, 50720, 66720, 76080, 88126, 132189, 152160, 176252, 220315, 264378, 352504, 440630, 528756, 660945, 705008, 881260, 1057512, 1321890, 1410016, 1762520, 2115024, 2643780, 3525040, 4230048, 5287560, 7050080, 10575120, 21150240]

約数ペア:

[(1, 21150240), (2, 10575120), (3, 7050080), (4, 5287560), (5, 4230048), (6, 3525040), (8, 2643780), (10, 2115024), (12, 1762520), (15, 1410016), (16, 1321890), (20, 1057512), (24, 881260), (30, 705008), (32, 660945), (40, 528756), (48, 440630), (60, 352504), (80, 264378), (96, 220315), (120, 176252), (139, 152160), (160, 132189), (240, 88126), (278, 76080), (317, 66720), (417, 50720), (480, 44063), (556, 38040), (634, 33360), (695, 30432), (834, 25360), (951, 22240), (1112, 19020), (1268, 16680), (1390, 15216), (1585, 13344), (1668, 12680), (1902, 11120), (2085, 10144), (2224, 9510), (2536, 8340), (2780, 7608), (3170, 6672), (3336, 6340), (3804, 5560), (4170, 5072), (4448, 4755)]