201378081

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 281069568

約数和(自身を除く): 79691487

約数列:

[1, 3, 67, 71, 103, 137, 201, 213, 309, 411, 4757, 6901, 7313, 9179, 9727, 14111, 14271, 20703, 21939, 27537, 29181, 42333, 489971, 651709, 945437, 1001881, 1469913, 1955127, 2836311, 3005643, 67126027, 201378081]

約数ペア:

[(1, 201378081), (3, 67126027), (67, 3005643), (71, 2836311), (103, 1955127), (137, 1469913), (201, 1001881), (213, 945437), (309, 651709), (411, 489971), (4757, 42333), (6901, 29181), (7313, 27537), (9179, 21939), (9727, 20703), (14111, 14271)]