21094216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18439}}^1$

素因数の和:18469

約数の個数: 32

約数和(自身を含む): 46468800

約数和(自身を除く): 25374584

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18439, 36878, 73756, 147512, 202829, 239707, 405658, 479414, 811316, 958828, 1622632, 1917656, 2636777, 5273554, 10547108, 21094216]

約数ペア:

[(1, 21094216), (2, 10547108), (4, 5273554), (8, 2636777), (11, 1917656), (13, 1622632), (22, 958828), (26, 811316), (44, 479414), (52, 405658), (88, 239707), (104, 202829), (143, 147512), (286, 73756), (572, 36878), (1144, 18439)]