15285921

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 24281088

約数和(自身を除く): 8995167

約数列:

[1, 3, 7, 21, 37, 103, 111, 191, 259, 309, 573, 721, 777, 1337, 2163, 3811, 4011, 7067, 11433, 19673, 21201, 26677, 49469, 59019, 80031, 137711, 148407, 413133, 727901, 2183703, 5095307, 15285921]

約数ペア:

[(1, 15285921), (3, 5095307), (7, 2183703), (21, 727901), (37, 413133), (103, 148407), (111, 137711), (191, 80031), (259, 59019), (309, 49469), (573, 26677), (721, 21201), (777, 19673), (1337, 11433), (2163, 7067), (3811, 4011)]