21000496984

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{154415419}}^1$

素因数の和:154415442

約数の個数: 16

約数和(自身を含む): 41692163400

約数和(自身を除く): 20691666416

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 154415419, 308830838, 617661676, 1235323352, 2625062123, 5250124246, 10500248492, 21000496984]

約数ペア:

[(1, 21000496984), (2, 10500248492), (4, 5250124246), (8, 2625062123), (17, 1235323352), (34, 617661676), (68, 308830838), (136, 154415419)]