20041996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12433}}^1$

素因数の和:12481

約数の個数: 24

約数和(自身を含む): 38993024

約数和(自身を除く): 18951028

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12433, 24866, 49732, 161629, 323258, 385423, 646516, 770846, 1541692, 5010499, 10020998, 20041996]

約数ペア:

[(1, 20041996), (2, 10020998), (4, 5010499), (13, 1541692), (26, 770846), (31, 646516), (52, 385423), (62, 323258), (124, 161629), (403, 49732), (806, 24866), (1612, 12433)]