21530498

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{88969}}^1$

素因数の和:88993

約数の個数: 12

約数和(自身を含む): 35499030

約数和(自身を除く): 13968532

約数列:

[1, 2, 11, 22, 121, 242, 88969, 177938, 978659, 1957318, 10765249, 21530498]

約数ペア:

[(1, 21530498), (2, 10765249), (11, 1957318), (22, 978659), (121, 177938), (242, 88969)]