21094745

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{2969}}^1$

素因数の和:3017

約数の個数: 24

約数和(自身を含む): 30472200

約数和(自身を除く): 9377455

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 1015, 1421, 2969, 7105, 14845, 20783, 86101, 103915, 145481, 430505, 602707, 727405, 3013535, 4218949, 21094745]

約数ペア:

[(1, 21094745), (5, 4218949), (7, 3013535), (29, 727405), (35, 602707), (49, 430505), (145, 145481), (203, 103915), (245, 86101), (1015, 20783), (1421, 14845), (2969, 7105)]