20875041

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{661}}^1$

素因数の和:718

約数の個数: 36

約数和(自身を含む): 34337940

約数和(自身を除く): 13462899

約数列:

[1, 3, 9, 11, 29, 33, 87, 99, 121, 261, 319, 363, 661, 957, 1089, 1983, 2871, 3509, 5949, 7271, 10527, 19169, 21813, 31581, 57507, 65439, 79981, 172521, 210859, 239943, 632577, 719829, 1897731, 2319449, 6958347, 20875041]

約数ペア:

[(1, 20875041), (3, 6958347), (9, 2319449), (11, 1897731), (29, 719829), (33, 632577), (87, 239943), (99, 210859), (121, 172521), (261, 79981), (319, 65439), (363, 57507), (661, 31581), (957, 21813), (1089, 19169), (1983, 10527), (2871, 7271), (3509, 5949)]