18339218

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:290

約数の個数: 32

約数和(自身を含む): 30240000

約数和(自身を除く): 11900782

約数列:

[1, 2, 19, 38, 41, 79, 82, 149, 158, 298, 779, 1501, 1558, 2831, 3002, 3239, 5662, 6109, 6478, 11771, 12218, 23542, 61541, 116071, 123082, 223649, 232142, 447298, 482611, 965222, 9169609, 18339218]

約数ペア:

[(1, 18339218), (2, 9169609), (19, 965222), (38, 482611), (41, 447298), (79, 232142), (82, 223649), (149, 123082), (158, 116071), (298, 61541), (779, 23542), (1501, 12218), (1558, 11771), (2831, 6478), (3002, 6109), (3239, 5662)]