21270434

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{7919}}^1$

素因数の和:8017

約数の個数: 16

約数和(自身を含む): 34214400

約数和(自身を除く): 12943966

約数列:

[1, 2, 17, 34, 79, 158, 1343, 2686, 7919, 15838, 134623, 269246, 625601, 1251202, 10635217, 21270434]

約数ペア:

[(1, 21270434), (2, 10635217), (17, 1251202), (34, 625601), (79, 269246), (158, 134623), (1343, 15838), (2686, 7919)]