821561444

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2179}}^1$

素因数の和:2265

約数の個数: 72

約数和(自身を含む): 1704847200

約数和(自身を除く): 883285756

約数列:

[1, 2, 4, 11, 19, 22, 38, 41, 44, 76, 82, 121, 164, 209, 242, 418, 451, 484, 779, 836, 902, 1558, 1804, 2179, 2299, 3116, 4358, 4598, 4961, 8569, 8716, 9196, 9922, 17138, 19844, 23969, 34276, 41401, 47938, 82802, 89339, 94259, 95876, 165604, 178678, 188518, 263659, 357356, 377036, 455411, 527318, 910822, 982729, 1054636, 1697441, 1821644, 1965458, 3394882, 3930916, 5009521, 6789764, 10019042, 10810019, 18671851, 20038084, 21620038, 37343702, 43240076, 74687404, 205390361, 410780722, 821561444]

約数ペア:

[(1, 821561444), (2, 410780722), (4, 205390361), (11, 74687404), (19, 43240076), (22, 37343702), (38, 21620038), (41, 20038084), (44, 18671851), (76, 10810019), (82, 10019042), (121, 6789764), (164, 5009521), (209, 3930916), (242, 3394882), (418, 1965458), (451, 1821644), (484, 1697441), (779, 1054636), (836, 982729), (902, 910822), (1558, 527318), (1804, 455411), (2179, 377036), (2299, 357356), (3116, 263659), (4358, 188518), (4598, 178678), (4961, 165604), (8569, 95876), (8716, 94259), (9196, 89339), (9922, 82802), (17138, 47938), (19844, 41401), (23969, 34276)]