25271788

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{349}}^1\times {\mathrm{421}}^1$

素因数の和:817

約数の個数: 24

約数和(自身を含む): 45491600

約数和(自身を除く): 20219812

約数列:

[1, 2, 4, 43, 86, 172, 349, 421, 698, 842, 1396, 1684, 15007, 18103, 30014, 36206, 60028, 72412, 146929, 293858, 587716, 6317947, 12635894, 25271788]

約数ペア:

[(1, 25271788), (2, 12635894), (4, 6317947), (43, 587716), (86, 293858), (172, 146929), (349, 72412), (421, 60028), (698, 36206), (842, 30014), (1396, 18103), (1684, 15007)]