20864877

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{229}}^1\times {\mathrm{251}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 30834720

約数和(自身を除く): 9969843

約数列:

[1, 3, 11, 33, 121, 229, 251, 363, 687, 753, 2519, 2761, 7557, 8283, 27709, 30371, 57479, 83127, 91113, 172437, 632269, 1896807, 6954959, 20864877]

約数ペア:

[(1, 20864877), (3, 6954959), (11, 1896807), (33, 632269), (121, 172437), (229, 91113), (251, 83127), (363, 57479), (687, 30371), (753, 27709), (2519, 8283), (2761, 7557)]