2009721909

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{11959}}^1$

素因数の和:12145

約数の個数: 32

約数和(自身を含む): 3000524800

約数和(自身を除く): 990802891

約数列:

[1, 3, 13, 31, 39, 93, 139, 403, 417, 1209, 1807, 4309, 5421, 11959, 12927, 35877, 56017, 155467, 168051, 370729, 466401, 1112187, 1662301, 4819477, 4986903, 14458431, 21609913, 51531331, 64829739, 154593993, 669907303, 2009721909]

約数ペア:

[(1, 2009721909), (3, 669907303), (13, 154593993), (31, 64829739), (39, 51531331), (93, 21609913), (139, 14458431), (403, 4986903), (417, 4819477), (1209, 1662301), (1807, 1112187), (4309, 466401), (5421, 370729), (11959, 168051), (12927, 155467), (35877, 56017)]