219956877

素因数分解:

$3^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{3559}}^1$

素因数の和:3687

約数の個数: 40

約数和(自身を含む): 379068800

約数和(自身を除く): 159111923

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 109, 189, 327, 567, 763, 981, 2289, 2943, 3559, 6867, 8829, 10677, 20601, 24913, 32031, 61803, 74739, 96093, 224217, 288279, 387931, 672651, 1163793, 2017953, 2715517, 3491379, 8146551, 10474137, 24439653, 31422411, 73318959, 219956877]

約数ペア:

[(1, 219956877), (3, 73318959), (7, 31422411), (9, 24439653), (21, 10474137), (27, 8146551), (63, 3491379), (81, 2715517), (109, 2017953), (189, 1163793), (327, 672651), (567, 387931), (763, 288279), (981, 224217), (2289, 96093), (2943, 74739), (3559, 61803), (6867, 32031), (8829, 24913), (10677, 20601)]