28401921

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{11311}}^1$

素因数の和:11354

約数の個数: 20

約数和(自身を含む): 43800064

約数和(自身を除く): 15398143

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 11311, 33933, 101799, 305397, 350641, 916191, 1051923, 3155769, 9467307, 28401921]

約数ペア:

[(1, 28401921), (3, 9467307), (9, 3155769), (27, 1051923), (31, 916191), (81, 350641), (93, 305397), (279, 101799), (837, 33933), (2511, 11311)]