243724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:169

約数の個数: 24

約数和(自身を含む): 474320

約数和(自身を除く): 230596

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 109, 172, 218, 436, 559, 1118, 1417, 2236, 2834, 4687, 5668, 9374, 18748, 60931, 121862, 243724]

約数ペア:

[(1, 243724), (2, 121862), (4, 60931), (13, 18748), (26, 9374), (43, 5668), (52, 4687), (86, 2834), (109, 2236), (172, 1417), (218, 1118), (436, 559)]