20921624072

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{5417}}^1\times {\mathrm{9109}}^1$

素因数の和:14585

約数の個数: 32

約数和(自身を含む): 39979963800

約数和(自身を除く): 19058339728

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 5417, 9109, 10834, 18218, 21668, 36436, 43336, 72872, 287101, 482777, 574202, 965554, 1148404, 1931108, 2296808, 3862216, 49343453, 98686906, 197373812, 394747624, 2615203009, 5230406018, 10460812036, 20921624072]

約数ペア:

[(1, 20921624072), (2, 10460812036), (4, 5230406018), (8, 2615203009), (53, 394747624), (106, 197373812), (212, 98686906), (424, 49343453), (5417, 3862216), (9109, 2296808), (10834, 1931108), (18218, 1148404), (21668, 965554), (36436, 574202), (43336, 482777), (72872, 287101)]