21618849

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 36542016

約数和(自身を除く): 14923167

約数列:

[1, 3, 7, 17, 21, 41, 49, 51, 119, 123, 147, 211, 287, 357, 633, 697, 833, 861, 1477, 2009, 2091, 2499, 3587, 4431, 4879, 6027, 8651, 10339, 10761, 14637, 25109, 25953, 31017, 34153, 60557, 75327, 102459, 147067, 175763, 181671, 423899, 441201, 527289, 1029469, 1271697, 3088407, 7206283, 21618849]

約数ペア:

[(1, 21618849), (3, 7206283), (7, 3088407), (17, 1271697), (21, 1029469), (41, 527289), (49, 441201), (51, 423899), (119, 181671), (123, 175763), (147, 147067), (211, 102459), (287, 75327), (357, 60557), (633, 34153), (697, 31017), (833, 25953), (861, 25109), (1477, 14637), (2009, 10761), (2091, 10339), (2499, 8651), (3587, 6027), (4431, 4879)]