66645908

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{76781}}^1$

素因数の和:76823

約数の個数: 24

約数和(自身を含む): 137593344

約数和(自身を除く): 70947436

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 76781, 153562, 307124, 537467, 1074934, 2149868, 2380211, 4760422, 9520844, 16661477, 33322954, 66645908]

約数ペア:

[(1, 66645908), (2, 33322954), (4, 16661477), (7, 9520844), (14, 4760422), (28, 2380211), (31, 2149868), (62, 1074934), (124, 537467), (217, 307124), (434, 153562), (868, 76781)]