18429831

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^2\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 54

約数和(自身を含む): 32781840

約数和(自身を除く): 14352009

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 79, 147, 161, 207, 237, 441, 483, 529, 553, 711, 1127, 1449, 1587, 1659, 1817, 3381, 3703, 3871, 4761, 4977, 5451, 10143, 11109, 11613, 12719, 16353, 25921, 33327, 34839, 38157, 41791, 77763, 89033, 114471, 125373, 233289, 267099, 292537, 376119, 801297, 877611, 2047759, 2632833, 6143277, 18429831]

約数ペア:

[(1, 18429831), (3, 6143277), (7, 2632833), (9, 2047759), (21, 877611), (23, 801297), (49, 376119), (63, 292537), (69, 267099), (79, 233289), (147, 125373), (161, 114471), (207, 89033), (237, 77763), (441, 41791), (483, 38157), (529, 34839), (553, 33327), (711, 25921), (1127, 16353), (1449, 12719), (1587, 11613), (1659, 11109), (1817, 10143), (3381, 5451), (3703, 4977), (3871, 4761)]