28135289

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1399}}^1$

素因数の和:1449

約数の個数: 24

約数和(自身を含む): 36892800

約数和(自身を除く): 8757511

約数列:

[1, 7, 13, 17, 91, 119, 169, 221, 1183, 1399, 1547, 2873, 9793, 18187, 20111, 23783, 127309, 166481, 236431, 309179, 1655017, 2164253, 4019327, 28135289]

約数ペア:

[(1, 28135289), (7, 4019327), (13, 2164253), (17, 1655017), (91, 309179), (119, 236431), (169, 166481), (221, 127309), (1183, 23783), (1399, 20111), (1547, 18187), (2873, 9793)]