21855880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{32141}}^1$

素因数の和:32169

約数の個数: 32

約数和(自身を含む): 52070040

約数和(自身を除く): 30214160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 32141, 64282, 128564, 160705, 257128, 321410, 546397, 642820, 1092794, 1285640, 2185588, 2731985, 4371176, 5463970, 10927940, 21855880]

約数ペア:

[(1, 21855880), (2, 10927940), (4, 5463970), (5, 4371176), (8, 2731985), (10, 2185588), (17, 1285640), (20, 1092794), (34, 642820), (40, 546397), (68, 321410), (85, 257128), (136, 160705), (170, 128564), (340, 64282), (680, 32141)]