21357108367

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{24977}}^1$

素因数の和:25167

約数の個数: 32

約数和(自身を含む): 26242486272

約数和(自身を除く): 4885377905

約数列:

[1, 7, 23, 47, 113, 161, 329, 791, 1081, 2599, 5311, 7567, 18193, 24977, 37177, 122153, 174839, 574471, 855071, 1173919, 2822401, 4021297, 8217433, 19756807, 27000137, 64915223, 132652847, 189000959, 454406561, 928569929, 3051015481, 21357108367]

約数ペア:

[(1, 21357108367), (7, 3051015481), (23, 928569929), (47, 454406561), (113, 189000959), (161, 132652847), (329, 64915223), (791, 27000137), (1081, 19756807), (2599, 8217433), (5311, 4021297), (7567, 2822401), (18193, 1173919), (24977, 855071), (37177, 574471), (122153, 174839)]