78812139

素因数分解:

$3^1\times 7^3\times {\mathrm{191}}^1\times {\mathrm{401}}^1$

素因数の和:616

約数の個数: 32

約数和(自身を含む): 123494400

約数和(自身を除く): 44682261

約数列:

[1, 3, 7, 21, 49, 147, 191, 343, 401, 573, 1029, 1203, 1337, 2807, 4011, 8421, 9359, 19649, 28077, 58947, 65513, 76591, 137543, 196539, 229773, 412629, 536137, 1608411, 3752959, 11258877, 26270713, 78812139]

約数ペア:

[(1, 78812139), (3, 26270713), (7, 11258877), (21, 3752959), (49, 1608411), (147, 536137), (191, 412629), (343, 229773), (401, 196539), (573, 137543), (1029, 76591), (1203, 65513), (1337, 58947), (2807, 28077), (4011, 19649), (8421, 9359)]