20681121555

素因数分解:

$3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2098541}}^1$

素因数の和:2098628

約数の個数: 32

約数和(自身を含む): 37270105920

約数和(自身を除く): 16588984365

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 135, 219, 365, 657, 1095, 1971, 3285, 9855, 2098541, 6295623, 10492705, 18886869, 31478115, 56660607, 94434345, 153193493, 283303035, 459580479, 765967465, 1378741437, 2297902395, 4136224311, 6893707185, 20681121555]

約数ペア:

[(1, 20681121555), (3, 6893707185), (5, 4136224311), (9, 2297902395), (15, 1378741437), (27, 765967465), (45, 459580479), (73, 283303035), (135, 153193493), (219, 94434345), (365, 56660607), (657, 31478115), (1095, 18886869), (1971, 10492705), (3285, 6295623), (9855, 2098541)]