21118365

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5273}}^1$

素因数の和:5373

約数の個数: 24

約数和(自身を含む): 37023480

約数和(自身を除く): 15905115

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 5273, 15819, 26365, 47457, 79095, 237285, 469297, 1407891, 2346485, 4223673, 7039455, 21118365]

約数ペア:

[(1, 21118365), (3, 7039455), (5, 4223673), (9, 2346485), (15, 1407891), (45, 469297), (89, 237285), (267, 79095), (445, 47457), (801, 26365), (1335, 15819), (4005, 5273)]