21895090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{653}}^1$

素因数の和:1146

約数の個数: 32

約数和(自身を含む): 45204480

約数和(自身を除く): 23309390

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 479, 653, 958, 1306, 2395, 3265, 3353, 4571, 4790, 6530, 6706, 9142, 16765, 22855, 33530, 45710, 312787, 625574, 1563935, 2189509, 3127870, 4379018, 10947545, 21895090]

約数ペア:

[(1, 21895090), (2, 10947545), (5, 4379018), (7, 3127870), (10, 2189509), (14, 1563935), (35, 625574), (70, 312787), (479, 45710), (653, 33530), (958, 22855), (1306, 16765), (2395, 9142), (3265, 6706), (3353, 6530), (4571, 4790)]