20007866739

素因数分解:

$3^1\times 7^4\times {\mathrm{191}}^1\times {\mathrm{14543}}^1$

素因数の和:14765

約数の個数: 40

約数和(自身を含む): 31286587392

約数和(自身を除く): 11278720653

約数列:

[1, 3, 7, 21, 49, 147, 191, 343, 573, 1029, 1337, 2401, 4011, 7203, 9359, 14543, 28077, 43629, 65513, 101801, 196539, 305403, 458591, 712607, 1375773, 2137821, 2777713, 4988249, 8333139, 14964747, 19443991, 34917743, 58331973, 104753229, 136107937, 408323811, 952755559, 2858266677, 6669288913, 20007866739]

約数ペア:

[(1, 20007866739), (3, 6669288913), (7, 2858266677), (21, 952755559), (49, 408323811), (147, 136107937), (191, 104753229), (343, 58331973), (573, 34917743), (1029, 19443991), (1337, 14964747), (2401, 8333139), (4011, 4988249), (7203, 2777713), (9359, 2137821), (14543, 1375773), (28077, 712607), (43629, 458591), (65513, 305403), (101801, 196539)]