28783221

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{1789}}^1$

素因数の和:1996

約数の個数: 16

約数和(自身を含む): 39866880

約数和(自身を除く): 11083659

約数列:

[1, 3, 31, 93, 173, 519, 1789, 5363, 5367, 16089, 55459, 166377, 309497, 928491, 9594407, 28783221]

約数ペア:

[(1, 28783221), (3, 9594407), (31, 928491), (93, 309497), (173, 166377), (519, 55459), (1789, 16089), (5363, 5367)]