21407808

素因数分解:

$2^6\times 3^1\times {\mathrm{43}}^1\times {\mathrm{2593}}^1$

素因数の和:2651

約数の個数: 56

約数和(自身を含む): 57981088

約数和(自身を除く): 36573280

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 64, 86, 96, 129, 172, 192, 258, 344, 516, 688, 1032, 1376, 2064, 2593, 2752, 4128, 5186, 7779, 8256, 10372, 15558, 20744, 31116, 41488, 62232, 82976, 111499, 124464, 165952, 222998, 248928, 334497, 445996, 497856, 668994, 891992, 1337988, 1783984, 2675976, 3567968, 5351952, 7135936, 10703904, 21407808]

約数ペア:

[(1, 21407808), (2, 10703904), (3, 7135936), (4, 5351952), (6, 3567968), (8, 2675976), (12, 1783984), (16, 1337988), (24, 891992), (32, 668994), (43, 497856), (48, 445996), (64, 334497), (86, 248928), (96, 222998), (129, 165952), (172, 124464), (192, 111499), (258, 82976), (344, 62232), (516, 41488), (688, 31116), (1032, 20744), (1376, 15558), (2064, 10372), (2593, 8256), (2752, 7779), (4128, 5186)]