21615672980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3989}}^1\times {\mathrm{24631}}^1$

素因数の和:28640

約数の個数: 48

約数和(自身を含む): 49533966720

約数和(自身を除く): 27918293740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 3989, 7978, 15956, 19945, 24631, 39890, 43879, 49262, 79780, 87758, 98524, 123155, 175516, 219395, 246310, 270941, 438790, 492620, 541882, 877580, 1083764, 1354705, 2709410, 5418820, 98253059, 196506118, 393012236, 491265295, 982530590, 1080783649, 1965061180, 2161567298, 4323134596, 5403918245, 10807836490, 21615672980]

約数ペア:

[(1, 21615672980), (2, 10807836490), (4, 5403918245), (5, 4323134596), (10, 2161567298), (11, 1965061180), (20, 1080783649), (22, 982530590), (44, 491265295), (55, 393012236), (110, 196506118), (220, 98253059), (3989, 5418820), (7978, 2709410), (15956, 1354705), (19945, 1083764), (24631, 877580), (39890, 541882), (43879, 492620), (49262, 438790), (79780, 270941), (87758, 246310), (98524, 219395), (123155, 175516)]