19902861

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3527}}^1$

素因数の和:3566

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 13965939

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 99, 171, 209, 297, 513, 627, 1881, 3527, 5643, 10581, 31743, 38797, 67013, 95229, 116391, 201039, 349173, 603117, 737143, 1047519, 1809351, 2211429, 6634287, 19902861]

約数ペア:

[(1, 19902861), (3, 6634287), (9, 2211429), (11, 1809351), (19, 1047519), (27, 737143), (33, 603117), (57, 349173), (99, 201039), (171, 116391), (209, 95229), (297, 67013), (513, 38797), (627, 31743), (1881, 10581), (3527, 5643)]