20808821037

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{449}}^1\times {\mathrm{2789}}^1$

素因数の和:3461

約数の個数: 32

約数和(自身を含む): 28926720000

約数和(自身を除く): 8117898963

約数列:

[1, 3, 29, 87, 191, 449, 573, 1347, 2789, 5539, 8367, 13021, 16617, 39063, 80881, 85759, 242643, 257277, 532699, 1252261, 1598097, 2487011, 3756783, 7461033, 15448271, 36315569, 46344813, 108946707, 239181851, 717545553, 6936273679, 20808821037]

約数ペア:

[(1, 20808821037), (3, 6936273679), (29, 717545553), (87, 239181851), (191, 108946707), (449, 46344813), (573, 36315569), (1347, 15448271), (2789, 7461033), (5539, 3756783), (8367, 2487011), (13021, 1598097), (16617, 1252261), (39063, 532699), (80881, 257277), (85759, 242643)]