18143727

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1229}}^1$

素因数の和:1295

約数の個数: 32

約数和(自身を含む): 29913600

約数和(自身を除く): 11769873

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 259, 399, 703, 777, 1229, 2109, 3687, 4921, 8603, 14763, 23351, 25809, 45473, 70053, 136419, 163457, 318311, 490371, 863987, 954933, 2591961, 6047909, 18143727]

約数ペア:

[(1, 18143727), (3, 6047909), (7, 2591961), (19, 954933), (21, 863987), (37, 490371), (57, 318311), (111, 163457), (133, 136419), (259, 70053), (399, 45473), (703, 25809), (777, 23351), (1229, 14763), (2109, 8603), (3687, 4921)]