21315212

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{1877}}^1$

素因数の和:2065

約数の個数: 24

約数和(自身を含む): 39753504

約数和(自身を除く): 18438292

約数列:

[1, 2, 4, 17, 34, 68, 167, 334, 668, 1877, 2839, 3754, 5678, 7508, 11356, 31909, 63818, 127636, 313459, 626918, 1253836, 5328803, 10657606, 21315212]

約数ペア:

[(1, 21315212), (2, 10657606), (4, 5328803), (17, 1253836), (34, 626918), (68, 313459), (167, 127636), (334, 63818), (668, 31909), (1877, 11356), (2839, 7508), (3754, 5678)]