28118013

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17389}}^1$

素因数の和:17417

約数の個数: 24

約数和(自身を含む): 47579040

約数和(自身を除く): 19461027

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 17389, 52167, 121723, 191279, 365169, 573837, 852061, 1338953, 2556183, 4016859, 9372671, 28118013]

約数ペア:

[(1, 28118013), (3, 9372671), (7, 4016859), (11, 2556183), (21, 1338953), (33, 852061), (49, 573837), (77, 365169), (147, 191279), (231, 121723), (539, 52167), (1617, 17389)]