20211254

素因数分解:

$2^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{9689}}^1$

素因数の和:9847

約数の個数: 16

約数和(自身を含む): 34884000

約数和(自身を除く): 14672746

約数列:

[1, 2, 7, 14, 149, 298, 1043, 2086, 9689, 19378, 67823, 135646, 1443661, 2887322, 10105627, 20211254]

約数ペア:

[(1, 20211254), (2, 10105627), (7, 2887322), (14, 1443661), (149, 135646), (298, 67823), (1043, 19378), (2086, 9689)]