21359624

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18671}}^1$

素因数の和:18701

約数の個数: 32

約数和(自身を含む): 47053440

約数和(自身を除く): 25693816

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18671, 37342, 74684, 149368, 205381, 242723, 410762, 485446, 821524, 970892, 1643048, 1941784, 2669953, 5339906, 10679812, 21359624]

約数ペア:

[(1, 21359624), (2, 10679812), (4, 5339906), (8, 2669953), (11, 1941784), (13, 1643048), (22, 970892), (26, 821524), (44, 485446), (52, 410762), (88, 242723), (104, 205381), (143, 149368), (286, 74684), (572, 37342), (1144, 18671)]