19828017

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{661}}^1$

素因数の和:782

約数の個数: 32

約数和(自身を含む): 32411520

約数和(自身を除く): 12583503

約数列:

[1, 3, 9, 11, 27, 33, 99, 101, 297, 303, 661, 909, 1111, 1983, 2727, 3333, 5949, 7271, 9999, 17847, 21813, 29997, 65439, 66761, 196317, 200283, 600849, 734371, 1802547, 2203113, 6609339, 19828017]

約数ペア:

[(1, 19828017), (3, 6609339), (9, 2203113), (11, 1802547), (27, 734371), (33, 600849), (99, 200283), (101, 196317), (297, 66761), (303, 65439), (661, 29997), (909, 21813), (1111, 17847), (1983, 9999), (2727, 7271), (3333, 5949)]