81971948

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{631}}^1\times {\mathrm{691}}^1$

素因数の和:1373

約数の個数: 24

約数和(自身を含む): 146947584

約数和(自身を除く): 64975636

約数列:

[1, 2, 4, 47, 94, 188, 631, 691, 1262, 1382, 2524, 2764, 29657, 32477, 59314, 64954, 118628, 129908, 436021, 872042, 1744084, 20492987, 40985974, 81971948]

約数ペア:

[(1, 81971948), (2, 40985974), (4, 20492987), (47, 1744084), (94, 872042), (188, 436021), (631, 129908), (691, 118628), (1262, 64954), (1382, 59314), (2524, 32477), (2764, 29657)]