64568721

素因数分解:

$3^1\times 7^3\times {\mathrm{131}}^1\times {\mathrm{479}}^1$

素因数の和:634

約数の個数: 32

約数和(自身を含む): 101376000

約数和(自身を除く): 36807279

約数列:

[1, 3, 7, 21, 49, 131, 147, 343, 393, 479, 917, 1029, 1437, 2751, 3353, 6419, 10059, 19257, 23471, 44933, 62749, 70413, 134799, 164297, 188247, 439243, 492891, 1317729, 3074701, 9224103, 21522907, 64568721]

約数ペア:

[(1, 64568721), (3, 21522907), (7, 9224103), (21, 3074701), (49, 1317729), (131, 492891), (147, 439243), (343, 188247), (393, 164297), (479, 134799), (917, 70413), (1029, 62749), (1437, 44933), (2751, 23471), (3353, 19257), (6419, 10059)]