21904064

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3761}}^1$

素因数の和:3793

約数の個数: 56

約数和(自身を含む): 53510688

約数和(自身を除く): 31606624

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 182, 208, 224, 364, 416, 448, 728, 832, 1456, 2912, 3761, 5824, 7522, 15044, 26327, 30088, 48893, 52654, 60176, 97786, 105308, 120352, 195572, 210616, 240704, 342251, 391144, 421232, 684502, 782288, 842464, 1369004, 1564576, 1684928, 2738008, 3129152, 5476016, 10952032, 21904064]

約数ペア:

[(1, 21904064), (2, 10952032), (4, 5476016), (7, 3129152), (8, 2738008), (13, 1684928), (14, 1564576), (16, 1369004), (26, 842464), (28, 782288), (32, 684502), (52, 421232), (56, 391144), (64, 342251), (91, 240704), (104, 210616), (112, 195572), (182, 120352), (208, 105308), (224, 97786), (364, 60176), (416, 52654), (448, 48893), (728, 30088), (832, 26327), (1456, 15044), (2912, 7522), (3761, 5824)]