28871518

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{10781}}^1$

素因数の和:10899

約数の個数: 16

約数和(自身を含む): 47095776

約数和(自身を除く): 18224258

約数列:

[1, 2, 13, 26, 103, 206, 1339, 2678, 10781, 21562, 140153, 280306, 1110443, 2220886, 14435759, 28871518]

約数ペア:

[(1, 28871518), (2, 14435759), (13, 2220886), (26, 1110443), (103, 280306), (206, 140153), (1339, 21562), (2678, 10781)]