253741359

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{397}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 362211840

約数和(自身を除く): 108470481

約数列:

[1, 3, 23, 59, 69, 157, 177, 397, 471, 1191, 1357, 3611, 4071, 9131, 9263, 10833, 23423, 27393, 27789, 62329, 70269, 186987, 213049, 538729, 639147, 1433567, 1616187, 3677411, 4300701, 11032233, 84580453, 253741359]

約数ペア:

[(1, 253741359), (3, 84580453), (23, 11032233), (59, 4300701), (69, 3677411), (157, 1616187), (177, 1433567), (397, 639147), (471, 538729), (1191, 213049), (1357, 186987), (3611, 70269), (4071, 62329), (9131, 27789), (9263, 27393), (10833, 23423)]