21070406

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{19051}}^1$

素因数の和:19139

約数の個数: 16

約数和(自身を含む): 36579840

約数和(自身を除く): 15509434

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 19051, 38102, 133357, 266714, 1505029, 3010058, 10535203, 21070406]

約数ペア:

[(1, 21070406), (2, 10535203), (7, 3010058), (14, 1505029), (79, 266714), (158, 133357), (553, 38102), (1106, 19051)]