20858409

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{853}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 37302720

約数和(自身を除く): 16444311

約数列:

[1, 3, 9, 11, 13, 19, 33, 39, 57, 99, 117, 143, 171, 209, 247, 429, 627, 741, 853, 1287, 1881, 2223, 2559, 2717, 7677, 8151, 9383, 11089, 16207, 24453, 28149, 33267, 48621, 84447, 99801, 121979, 145863, 178277, 210691, 365937, 534831, 632073, 1097811, 1604493, 1896219, 2317601, 6952803, 20858409]

約数ペア:

[(1, 20858409), (3, 6952803), (9, 2317601), (11, 1896219), (13, 1604493), (19, 1097811), (33, 632073), (39, 534831), (57, 365937), (99, 210691), (117, 178277), (143, 145863), (171, 121979), (209, 99801), (247, 84447), (429, 48621), (627, 33267), (741, 28149), (853, 24453), (1287, 16207), (1881, 11089), (2223, 9383), (2559, 8151), (2717, 7677)]