28438501

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{593}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 9881627

約数列:

[1, 7, 13, 17, 31, 91, 119, 217, 221, 403, 527, 593, 1547, 2821, 3689, 4151, 6851, 7709, 10081, 18383, 47957, 53963, 70567, 128681, 131053, 238979, 312511, 917371, 1672853, 2187577, 4062643, 28438501]

約数ペア:

[(1, 28438501), (7, 4062643), (13, 2187577), (17, 1672853), (31, 917371), (91, 312511), (119, 238979), (217, 131053), (221, 128681), (403, 70567), (527, 53963), (593, 47957), (1547, 18383), (2821, 10081), (3689, 7709), (4151, 6851)]