21223826

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{7489}}^1$

素因数の和:7613

約数の個数: 16

約数和(自身を含む): 34603800

約数和(自身を除く): 13379974

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 7489, 14978, 97357, 194714, 816301, 1632602, 10611913, 21223826]

約数ペア:

[(1, 21223826), (2, 10611913), (13, 1632602), (26, 816301), (109, 194714), (218, 97357), (1417, 14978), (2834, 7489)]