281640387

素因数分解:

$3^1\times 7^3\times {\mathrm{191}}^1\times {\mathrm{1433}}^1$

素因数の和:1648

約数の個数: 32

約数和(自身を含む): 440524800

約数和(自身を除く): 158884413

約数列:

[1, 3, 7, 21, 49, 147, 191, 343, 573, 1029, 1337, 1433, 4011, 4299, 9359, 10031, 28077, 30093, 65513, 70217, 196539, 210651, 273703, 491519, 821109, 1474557, 1915921, 5747763, 13411447, 40234341, 93880129, 281640387]

約数ペア:

[(1, 281640387), (3, 93880129), (7, 40234341), (21, 13411447), (49, 5747763), (147, 1915921), (191, 1474557), (343, 821109), (573, 491519), (1029, 273703), (1337, 210651), (1433, 196539), (4011, 70217), (4299, 65513), (9359, 30093), (10031, 28077)]