19730139

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 32264736

約数和(自身を除く): 12534597

約数列:

[1, 3, 11, 13, 33, 37, 39, 111, 113, 121, 143, 339, 363, 407, 429, 481, 1221, 1243, 1443, 1469, 1573, 3729, 4181, 4407, 4477, 4719, 5291, 12543, 13431, 13673, 15873, 16159, 41019, 45991, 48477, 54353, 58201, 137973, 163059, 174603, 177749, 505901, 533247, 597883, 1517703, 1793649, 6576713, 19730139]

約数ペア:

[(1, 19730139), (3, 6576713), (11, 1793649), (13, 1517703), (33, 597883), (37, 533247), (39, 505901), (111, 177749), (113, 174603), (121, 163059), (143, 137973), (339, 58201), (363, 54353), (407, 48477), (429, 45991), (481, 41019), (1221, 16159), (1243, 15873), (1443, 13673), (1469, 13431), (1573, 12543), (3729, 5291), (4181, 4719), (4407, 4477)]