21865420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37699}}^1$

素因数の和:37737

約数の個数: 24

約数和(自身を含む): 47502000

約数和(自身を除く): 25636580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 37699, 75398, 150796, 188495, 376990, 753980, 1093271, 2186542, 4373084, 5466355, 10932710, 21865420]

約数ペア:

[(1, 21865420), (2, 10932710), (4, 5466355), (5, 4373084), (10, 2186542), (20, 1093271), (29, 753980), (58, 376990), (116, 188495), (145, 150796), (290, 75398), (580, 37699)]