20989722

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{4561}}^1$

素因数の和:4638

約数の個数: 32

約数和(自身を含む): 45984960

約数和(自身を除く): 24995238

約数列:

[1, 2, 3, 6, 13, 26, 39, 59, 78, 118, 177, 354, 767, 1534, 2301, 4561, 4602, 9122, 13683, 27366, 59293, 118586, 177879, 269099, 355758, 538198, 807297, 1614594, 3498287, 6996574, 10494861, 20989722]

約数ペア:

[(1, 20989722), (2, 10494861), (3, 6996574), (6, 3498287), (13, 1614594), (26, 807297), (39, 538198), (59, 355758), (78, 269099), (118, 177879), (177, 118586), (354, 59293), (767, 27366), (1534, 13683), (2301, 9122), (4561, 4602)]