20401989

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{17393}}^1$

素因数の和:17436

約数の個数: 16

約数和(自身を含む): 30056832

約数和(自身を除く): 9654843

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 17393, 52179, 295681, 400039, 887043, 1200117, 6800663, 20401989]

約数ペア:

[(1, 20401989), (3, 6800663), (17, 1200117), (23, 887043), (51, 400039), (69, 295681), (391, 52179), (1173, 17393)]