289291387

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 367718400

約数和(自身を除く): 78427013

約数列:

[1, 7, 11, 77, 139, 151, 179, 973, 1057, 1253, 1529, 1661, 1969, 10703, 11627, 13783, 20989, 24881, 27029, 146923, 174167, 189203, 230879, 273691, 297319, 1616153, 1915837, 2081233, 3757031, 26299217, 41327341, 289291387]

約数ペア:

[(1, 289291387), (7, 41327341), (11, 26299217), (77, 3757031), (139, 2081233), (151, 1915837), (179, 1616153), (973, 297319), (1057, 273691), (1253, 230879), (1529, 189203), (1661, 174167), (1969, 146923), (10703, 27029), (11627, 24881), (13783, 20989)]