72571431

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:435

約数の個数: 32

約数和(自身を含む): 105431040

約数和(自身を除く): 32859609

約数列:

[1, 3, 19, 47, 57, 103, 141, 263, 309, 789, 893, 1957, 2679, 4841, 4997, 5871, 12361, 14523, 14991, 27089, 37083, 81267, 91979, 234859, 275937, 514691, 704577, 1273183, 1544073, 3819549, 24190477, 72571431]

約数ペア:

[(1, 72571431), (3, 24190477), (19, 3819549), (47, 1544073), (57, 1273183), (103, 704577), (141, 514691), (263, 275937), (309, 234859), (789, 91979), (893, 81267), (1957, 37083), (2679, 27089), (4841, 14991), (4997, 14523), (5871, 12361)]