20517952

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^2\times {\mathrm{271}}^1$

素因数の和:316

約数の個数: 84

約数和(自身を含む): 50572416

約数和(自身を除く): 30054464

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 169, 182, 208, 224, 271, 338, 364, 416, 448, 542, 676, 728, 832, 1084, 1183, 1352, 1456, 1897, 2168, 2366, 2704, 2912, 3523, 3794, 4336, 4732, 5408, 5824, 7046, 7588, 8672, 9464, 10816, 14092, 15176, 17344, 18928, 24661, 28184, 30352, 37856, 45799, 49322, 56368, 60704, 75712, 91598, 98644, 112736, 121408, 183196, 197288, 225472, 320593, 366392, 394576, 641186, 732784, 789152, 1282372, 1465568, 1578304, 2564744, 2931136, 5129488, 10258976, 20517952]

約数ペア:

[(1, 20517952), (2, 10258976), (4, 5129488), (7, 2931136), (8, 2564744), (13, 1578304), (14, 1465568), (16, 1282372), (26, 789152), (28, 732784), (32, 641186), (52, 394576), (56, 366392), (64, 320593), (91, 225472), (104, 197288), (112, 183196), (169, 121408), (182, 112736), (208, 98644), (224, 91598), (271, 75712), (338, 60704), (364, 56368), (416, 49322), (448, 45799), (542, 37856), (676, 30352), (728, 28184), (832, 24661), (1084, 18928), (1183, 17344), (1352, 15176), (1456, 14092), (1897, 10816), (2168, 9464), (2366, 8672), (2704, 7588), (2912, 7046), (3523, 5824), (3794, 5408), (4336, 4732)]