20861516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23599}}^1$

素因数の和:23633

約数の個数: 24

約数和(自身を含む): 41630400

約数和(自身を除く): 20768884

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 23599, 47198, 94396, 306787, 401183, 613574, 802366, 1227148, 1604732, 5215379, 10430758, 20861516]

約数ペア:

[(1, 20861516), (2, 10430758), (4, 5215379), (13, 1604732), (17, 1227148), (26, 802366), (34, 613574), (52, 401183), (68, 306787), (221, 94396), (442, 47198), (884, 23599)]