18387918

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{7919}}^1$

素因数の和:7973

約数の個数: 32

約数和(自身を含む): 41817600

約数和(自身を除く): 23429682

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 86, 129, 258, 387, 774, 1161, 2322, 7919, 15838, 23757, 47514, 71271, 142542, 213813, 340517, 427626, 681034, 1021551, 2043102, 3064653, 6129306, 9193959, 18387918]

約数ペア:

[(1, 18387918), (2, 9193959), (3, 6129306), (6, 3064653), (9, 2043102), (18, 1021551), (27, 681034), (43, 427626), (54, 340517), (86, 213813), (129, 142542), (258, 71271), (387, 47514), (774, 23757), (1161, 15838), (2322, 7919)]