28940877

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19973}}^1$

素因数の和:20009

約数の個数: 24

約数和(自身を含む): 49855104

約数和(自身を除く): 20914227

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 19973, 59919, 139811, 179757, 419433, 459379, 1258299, 1378137, 3215653, 4134411, 9646959, 28940877]

約数ペア:

[(1, 28940877), (3, 9646959), (7, 4134411), (9, 3215653), (21, 1378137), (23, 1258299), (63, 459379), (69, 419433), (161, 179757), (207, 139811), (483, 59919), (1449, 19973)]