21555386

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{15331}}^1$

素因数の和:15389

約数の個数: 16

約数和(自身を含む): 34956960

約数和(自身を除く): 13401574

約数列:

[1, 2, 19, 37, 38, 74, 703, 1406, 15331, 30662, 291289, 567247, 582578, 1134494, 10777693, 21555386]

約数ペア:

[(1, 21555386), (2, 10777693), (19, 1134494), (37, 582578), (38, 567247), (74, 291289), (703, 30662), (1406, 15331)]