40389699

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 63258624

約数和(自身を除く): 22868925

約数列:

[1, 3, 7, 21, 71, 103, 213, 263, 309, 497, 721, 789, 1491, 1841, 2163, 5523, 7313, 18673, 21939, 27089, 51191, 56019, 81267, 130711, 153573, 189623, 392133, 568869, 1923319, 5769957, 13463233, 40389699]

約数ペア:

[(1, 40389699), (3, 13463233), (7, 5769957), (21, 1923319), (71, 568869), (103, 392133), (213, 189623), (263, 153573), (309, 130711), (497, 81267), (721, 56019), (789, 51191), (1491, 27089), (1841, 21939), (2163, 18673), (5523, 7313)]