20404887

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{4051}}^1$

素因数の和:4150

約数の個数: 16

約数和(自身を含む): 28785408

約数和(自身を除く): 8380521

約数列:

[1, 3, 23, 69, 73, 219, 1679, 4051, 5037, 12153, 93173, 279519, 295723, 887169, 6801629, 20404887]

約数ペア:

[(1, 20404887), (3, 6801629), (23, 887169), (69, 295723), (73, 279519), (219, 93173), (1679, 12153), (4051, 5037)]