21734520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2551}}^1$

素因数の和:2636

約数の個数: 64

約数和(自身を含む): 66147840

約数和(自身を除く): 44413320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2551, 2840, 4260, 5102, 7653, 8520, 10204, 12755, 15306, 20408, 25510, 30612, 38265, 51020, 61224, 76530, 102040, 153060, 181121, 306120, 362242, 543363, 724484, 905605, 1086726, 1448968, 1811210, 2173452, 2716815, 3622420, 4346904, 5433630, 7244840, 10867260, 21734520]

約数ペア:

[(1, 21734520), (2, 10867260), (3, 7244840), (4, 5433630), (5, 4346904), (6, 3622420), (8, 2716815), (10, 2173452), (12, 1811210), (15, 1448968), (20, 1086726), (24, 905605), (30, 724484), (40, 543363), (60, 362242), (71, 306120), (120, 181121), (142, 153060), (213, 102040), (284, 76530), (355, 61224), (426, 51020), (568, 38265), (710, 30612), (852, 25510), (1065, 20408), (1420, 15306), (1704, 12755), (2130, 10204), (2551, 8520), (2840, 7653), (4260, 5102)]