20425977

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 14954823

約数列:

[1, 3, 9, 11, 13, 33, 39, 59, 99, 117, 143, 177, 269, 429, 531, 649, 767, 807, 1287, 1947, 2301, 2421, 2959, 3497, 5841, 6903, 8437, 8877, 10491, 15871, 25311, 26631, 31473, 38467, 47613, 75933, 115401, 142839, 174581, 206323, 346203, 523743, 618969, 1571229, 1856907, 2269553, 6808659, 20425977]

約数ペア:

[(1, 20425977), (3, 6808659), (9, 2269553), (11, 1856907), (13, 1571229), (33, 618969), (39, 523743), (59, 346203), (99, 206323), (117, 174581), (143, 142839), (177, 115401), (269, 75933), (429, 47613), (531, 38467), (649, 31473), (767, 26631), (807, 25311), (1287, 15871), (1947, 10491), (2301, 8877), (2421, 8437), (2959, 6903), (3497, 5841)]