21352440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2917}}^1$

素因数の和:2992

約数の個数: 64

約数和(自身を含む): 65129760

約数和(自身を除く): 43777320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 2917, 3660, 5834, 7320, 8751, 11668, 14585, 17502, 23336, 29170, 35004, 43755, 58340, 70008, 87510, 116680, 175020, 177937, 350040, 355874, 533811, 711748, 889685, 1067622, 1423496, 1779370, 2135244, 2669055, 3558740, 4270488, 5338110, 7117480, 10676220, 21352440]

約数ペア:

[(1, 21352440), (2, 10676220), (3, 7117480), (4, 5338110), (5, 4270488), (6, 3558740), (8, 2669055), (10, 2135244), (12, 1779370), (15, 1423496), (20, 1067622), (24, 889685), (30, 711748), (40, 533811), (60, 355874), (61, 350040), (120, 177937), (122, 175020), (183, 116680), (244, 87510), (305, 70008), (366, 58340), (488, 43755), (610, 35004), (732, 29170), (915, 23336), (1220, 17502), (1464, 14585), (1830, 11668), (2440, 8751), (2917, 7320), (3660, 5834)]