21438911521

素因数分解:

${\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{509}}^1\times {\mathrm{1069}}^1$

素因数の和:1681

約数の個数: 24

約数和(自身を含む): 22758964200

約数和(自身を除く): 1320052679

約数列:

[1, 31, 41, 509, 961, 1069, 1271, 15779, 20869, 33139, 39401, 43829, 489149, 544121, 646939, 1027309, 1358699, 16867751, 20055109, 22308961, 42119669, 522900281, 691577791, 21438911521]

約数ペア:

[(1, 21438911521), (31, 691577791), (41, 522900281), (509, 42119669), (961, 22308961), (1069, 20055109), (1271, 16867751), (15779, 1358699), (20869, 1027309), (33139, 646939), (39401, 544121), (43829, 489149)]