21438394

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{11897}}^1$

素因数の和:11969

約数の個数: 16

約数和(自身を含む): 34694568

約数和(自身を除く): 13256174

約数列:

[1, 2, 17, 34, 53, 106, 901, 1802, 11897, 23794, 202249, 404498, 630541, 1261082, 10719197, 21438394]

約数ペア:

[(1, 21438394), (2, 10719197), (17, 1261082), (34, 630541), (53, 404498), (106, 202249), (901, 23794), (1802, 11897)]