201121895

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{28387}}^1$

素因数の和:28514

約数の個数: 16

約数和(自身を含む): 262305120

約数和(自身を除く): 61183225

約数列:

[1, 5, 13, 65, 109, 545, 1417, 7085, 28387, 141935, 369031, 1845155, 3094183, 15470915, 40224379, 201121895]

約数ペア:

[(1, 201121895), (5, 40224379), (13, 15470915), (65, 3094183), (109, 1845155), (545, 369031), (1417, 141935), (7085, 28387)]