21571886752

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{408311}}^1$

素因数の和:408461

約数の個数: 48

約数和(自身を含む): 46096791552

約数和(自身を除く): 24524904800

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 127, 208, 254, 416, 508, 1016, 1651, 2032, 3302, 4064, 6604, 13208, 26416, 52832, 408311, 816622, 1633244, 3266488, 5308043, 6532976, 10616086, 13065952, 21232172, 42464344, 51855497, 84928688, 103710994, 169857376, 207421988, 414843976, 674121461, 829687952, 1348242922, 1659375904, 2696485844, 5392971688, 10785943376, 21571886752]

約数ペア:

[(1, 21571886752), (2, 10785943376), (4, 5392971688), (8, 2696485844), (13, 1659375904), (16, 1348242922), (26, 829687952), (32, 674121461), (52, 414843976), (104, 207421988), (127, 169857376), (208, 103710994), (254, 84928688), (416, 51855497), (508, 42464344), (1016, 21232172), (1651, 13065952), (2032, 10616086), (3302, 6532976), (4064, 5308043), (6604, 3266488), (13208, 1633244), (26416, 816622), (52832, 408311)]