27731431

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 36861440

約数和(自身を除く): 9130009

約数列:

[1, 7, 13, 19, 43, 91, 133, 247, 301, 373, 559, 817, 1729, 2611, 3913, 4849, 5719, 7087, 10621, 16039, 33943, 49609, 74347, 92131, 112273, 208507, 304741, 644917, 1459549, 2133187, 3961633, 27731431]

約数ペア:

[(1, 27731431), (7, 3961633), (13, 2133187), (19, 1459549), (43, 644917), (91, 304741), (133, 208507), (247, 112273), (301, 92131), (373, 74347), (559, 49609), (817, 33943), (1729, 16039), (2611, 10621), (3913, 7087), (4849, 5719)]