21471788

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1381}}^1$

素因数の和:1434

約数の個数: 36

約数和(自身を含む): 42488208

約数和(自身を除く): 21016420

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 169, 299, 338, 598, 676, 1196, 1381, 2762, 3887, 5524, 7774, 15548, 17953, 31763, 35906, 63526, 71812, 127052, 233389, 412919, 466778, 825838, 933556, 1651676, 5367947, 10735894, 21471788]

約数ペア:

[(1, 21471788), (2, 10735894), (4, 5367947), (13, 1651676), (23, 933556), (26, 825838), (46, 466778), (52, 412919), (92, 233389), (169, 127052), (299, 71812), (338, 63526), (598, 35906), (676, 31763), (1196, 17953), (1381, 15548), (2762, 7774), (3887, 5524)]