21757144

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{159979}}^1$

素因数の和:160002

約数の個数: 16

約数和(自身を含む): 43194600

約数和(自身を除く): 21437456

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 159979, 319958, 639916, 1279832, 2719643, 5439286, 10878572, 21757144]

約数ペア:

[(1, 21757144), (2, 10878572), (4, 5439286), (8, 2719643), (17, 1279832), (34, 639916), (68, 319958), (136, 159979)]