20565577977

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2647}}^1\times {\mathrm{3109}}^1$

素因数の和:5790

約数の個数: 48

約数和(自身を含む): 33797589120

約数和(自身を除く): 13232011143

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 2647, 3109, 7941, 9327, 18529, 21763, 44999, 52853, 55587, 65289, 129703, 134997, 152341, 158559, 314993, 369971, 389109, 457023, 944979, 1109913, 2204951, 2589797, 6614853, 7769391, 8229523, 24688569, 57606661, 139901891, 172819983, 403246627, 419705673, 979313237, 1209739881, 2937939711, 6855192659, 20565577977]

約数ペア:

[(1, 20565577977), (3, 6855192659), (7, 2937939711), (17, 1209739881), (21, 979313237), (49, 419705673), (51, 403246627), (119, 172819983), (147, 139901891), (357, 57606661), (833, 24688569), (2499, 8229523), (2647, 7769391), (3109, 6614853), (7941, 2589797), (9327, 2204951), (18529, 1109913), (21763, 944979), (44999, 457023), (52853, 389109), (55587, 369971), (65289, 314993), (129703, 158559), (134997, 152341)]