21022092016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{323377}}^1$

素因数の和:323641

約数の個数: 40

約数和(自身を含む): 43306781760

約数和(自身を除く): 22284689744

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 239, 272, 478, 956, 1912, 3824, 4063, 8126, 16252, 32504, 65008, 323377, 646754, 1293508, 2587016, 5174032, 5497409, 10994818, 21989636, 43979272, 77287103, 87958544, 154574206, 309148412, 618296824, 1236593648, 1313880751, 2627761502, 5255523004, 10511046008, 21022092016]

約数ペア:

[(1, 21022092016), (2, 10511046008), (4, 5255523004), (8, 2627761502), (16, 1313880751), (17, 1236593648), (34, 618296824), (68, 309148412), (136, 154574206), (239, 87958544), (272, 77287103), (478, 43979272), (956, 21989636), (1912, 10994818), (3824, 5497409), (4063, 5174032), (8126, 2587016), (16252, 1293508), (32504, 646754), (65008, 323377)]