28188447

素因数分解:

$3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{7759}}^1$

素因数の和:7942

約数の個数: 16

約数和(自身を含む): 43207680

約数和(自身を除く): 15019233

約数列:

[1, 3, 7, 21, 173, 519, 1211, 3633, 7759, 23277, 54313, 162939, 1342307, 4026921, 9396149, 28188447]

約数ペア:

[(1, 28188447), (3, 9396149), (7, 4026921), (21, 1342307), (173, 162939), (519, 54313), (1211, 23277), (3633, 7759)]