20956138

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{461}}^1$

素因数の和:678

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 17363990

約数列:

[1, 2, 7, 14, 17, 34, 119, 191, 238, 382, 461, 922, 1337, 2674, 3227, 3247, 6454, 6494, 7837, 15674, 22729, 45458, 54859, 88051, 109718, 176102, 616357, 1232714, 1496867, 2993734, 10478069, 20956138]

約数ペア:

[(1, 20956138), (2, 10478069), (7, 2993734), (14, 1496867), (17, 1232714), (34, 616357), (119, 176102), (191, 109718), (238, 88051), (382, 54859), (461, 45458), (922, 22729), (1337, 15674), (2674, 7837), (3227, 6494), (3247, 6454)]