21847904

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1811}}^1$

素因数の和:1863

約数の個数: 48

約数和(自身を含む): 47945520

約数和(自身を除く): 26097616

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 104, 116, 208, 232, 377, 416, 464, 754, 928, 1508, 1811, 3016, 3622, 6032, 7244, 12064, 14488, 23543, 28976, 47086, 52519, 57952, 94172, 105038, 188344, 210076, 376688, 420152, 682747, 753376, 840304, 1365494, 1680608, 2730988, 5461976, 10923952, 21847904]

約数ペア:

[(1, 21847904), (2, 10923952), (4, 5461976), (8, 2730988), (13, 1680608), (16, 1365494), (26, 840304), (29, 753376), (32, 682747), (52, 420152), (58, 376688), (104, 210076), (116, 188344), (208, 105038), (232, 94172), (377, 57952), (416, 52519), (464, 47086), (754, 28976), (928, 23543), (1508, 14488), (1811, 12064), (3016, 7244), (3622, 6032)]