18454904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{211}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 38776920

約数和(自身を除く): 20322016

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 211, 232, 377, 422, 754, 841, 844, 1508, 1682, 1688, 2743, 3016, 3364, 5486, 6119, 6728, 10933, 10972, 12238, 21866, 21944, 24476, 43732, 48952, 79547, 87464, 159094, 177451, 318188, 354902, 636376, 709804, 1419608, 2306863, 4613726, 9227452, 18454904]

約数ペア:

[(1, 18454904), (2, 9227452), (4, 4613726), (8, 2306863), (13, 1419608), (26, 709804), (29, 636376), (52, 354902), (58, 318188), (104, 177451), (116, 159094), (211, 87464), (232, 79547), (377, 48952), (422, 43732), (754, 24476), (841, 21944), (844, 21866), (1508, 12238), (1682, 10972), (1688, 10933), (2743, 6728), (3016, 6119), (3364, 5486)]