21749880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{859}}^1$

素因数の和:1084

約数の個数: 64

約数和(自身を含む): 65635200

約数和(自身を除く): 43885320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 211, 422, 633, 844, 859, 1055, 1266, 1688, 1718, 2110, 2532, 2577, 3165, 3436, 4220, 4295, 5064, 5154, 6330, 6872, 8440, 8590, 10308, 12660, 12885, 17180, 20616, 25320, 25770, 34360, 51540, 103080, 181249, 362498, 543747, 724996, 906245, 1087494, 1449992, 1812490, 2174988, 2718735, 3624980, 4349976, 5437470, 7249960, 10874940, 21749880]

約数ペア:

[(1, 21749880), (2, 10874940), (3, 7249960), (4, 5437470), (5, 4349976), (6, 3624980), (8, 2718735), (10, 2174988), (12, 1812490), (15, 1449992), (20, 1087494), (24, 906245), (30, 724996), (40, 543747), (60, 362498), (120, 181249), (211, 103080), (422, 51540), (633, 34360), (844, 25770), (859, 25320), (1055, 20616), (1266, 17180), (1688, 12885), (1718, 12660), (2110, 10308), (2532, 8590), (2577, 8440), (3165, 6872), (3436, 6330), (4220, 5154), (4295, 5064)]