21913017

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61381}}^1$

素因数の和:61408

約数の個数: 16

約数和(自身を含む): 35356032

約数和(自身を除く): 13443015

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 61381, 184143, 429667, 1043477, 1289001, 3130431, 7304339, 21913017]

約数ペア:

[(1, 21913017), (3, 7304339), (7, 3130431), (17, 1289001), (21, 1043477), (51, 429667), (119, 184143), (357, 61381)]