21893248

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 47980800

約数和(自身を除く): 26087552

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 59, 64, 104, 118, 128, 208, 223, 236, 416, 446, 472, 767, 832, 892, 944, 1534, 1664, 1784, 1888, 2899, 3068, 3568, 3776, 5798, 6136, 7136, 7552, 11596, 12272, 13157, 14272, 23192, 24544, 26314, 28544, 46384, 49088, 52628, 92768, 98176, 105256, 171041, 185536, 210512, 342082, 371072, 421024, 684164, 842048, 1368328, 1684096, 2736656, 5473312, 10946624, 21893248]

約数ペア:

[(1, 21893248), (2, 10946624), (4, 5473312), (8, 2736656), (13, 1684096), (16, 1368328), (26, 842048), (32, 684164), (52, 421024), (59, 371072), (64, 342082), (104, 210512), (118, 185536), (128, 171041), (208, 105256), (223, 98176), (236, 92768), (416, 52628), (446, 49088), (472, 46384), (767, 28544), (832, 26314), (892, 24544), (944, 23192), (1534, 14272), (1664, 13157), (1784, 12272), (1888, 11596), (2899, 7552), (3068, 7136), (3568, 6136), (3776, 5798)]