28052115

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20551}}^1$

素因数の和:20579

約数の個数: 32

約数和(自身を含む): 55243776

約数和(自身を除く): 27191661

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 20551, 61653, 102755, 143857, 267163, 308265, 431571, 719285, 801489, 1335815, 1870141, 2157855, 4007445, 5610423, 9350705, 28052115]

約数ペア:

[(1, 28052115), (3, 9350705), (5, 5610423), (7, 4007445), (13, 2157855), (15, 1870141), (21, 1335815), (35, 801489), (39, 719285), (65, 431571), (91, 308265), (105, 267163), (195, 143857), (273, 102755), (455, 61653), (1365, 20551)]