21178049307

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{1571}}^1\times {\mathrm{121447}}^1$

素因数の和:123058

約数の個数: 16

約数和(自身を含む): 29019270912

約数和(自身を除く): 7841221605

約数列:

[1, 3, 37, 111, 1571, 4713, 58127, 121447, 174381, 364341, 4493539, 13480617, 190793237, 572379711, 7059349769, 21178049307]

約数ペア:

[(1, 21178049307), (3, 7059349769), (37, 572379711), (111, 190793237), (1571, 13480617), (4713, 4493539), (58127, 364341), (121447, 174381)]