21425326

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:348

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14499794

約数列:

[1, 2, 13, 26, 47, 89, 94, 178, 197, 394, 611, 1157, 1222, 2314, 2561, 4183, 5122, 8366, 9259, 17533, 18518, 35066, 54379, 108758, 120367, 227929, 240734, 455858, 824051, 1648102, 10712663, 21425326]

約数ペア:

[(1, 21425326), (2, 10712663), (13, 1648102), (26, 824051), (47, 455858), (89, 240734), (94, 227929), (178, 120367), (197, 108758), (394, 54379), (611, 35066), (1157, 18518), (1222, 17533), (2314, 9259), (2561, 8366), (4183, 5122)]