20381415

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{827}}^1$

素因数の和:919

約数の個数: 32

約数和(自身を含む): 34338816

約数和(自身を除く): 13957401

約数列:

[1, 3, 5, 15, 31, 53, 93, 155, 159, 265, 465, 795, 827, 1643, 2481, 4135, 4929, 8215, 12405, 24645, 25637, 43831, 76911, 128185, 131493, 219155, 384555, 657465, 1358761, 4076283, 6793805, 20381415]

約数ペア:

[(1, 20381415), (3, 6793805), (5, 4076283), (15, 1358761), (31, 657465), (53, 384555), (93, 219155), (155, 131493), (159, 128185), (265, 76911), (465, 43831), (795, 25637), (827, 24645), (1643, 12405), (2481, 8215), (4135, 4929)]