20218480503

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1\times {\mathrm{653}}^1$

素因数の和:1248

約数の個数: 64

約数和(自身を含む): 30617664000

約数和(自身を除く): 10399183497

約数列:

[1, 3, 13, 37, 39, 43, 111, 129, 481, 499, 559, 653, 1443, 1497, 1591, 1677, 1959, 4773, 6487, 8489, 18463, 19461, 20683, 21457, 24161, 25467, 28079, 55389, 62049, 64371, 72483, 84237, 240019, 278941, 314093, 325847, 365027, 720057, 793909, 836823, 942279, 977541, 1038923, 1095081, 2381727, 3116769, 4236011, 10320817, 12056339, 12708033, 13505999, 14011421, 30962451, 36169017, 40517997, 42034263, 156732407, 182148473, 470197221, 518422577, 546445419, 1555267731, 6739493501, 20218480503]

約数ペア:

[(1, 20218480503), (3, 6739493501), (13, 1555267731), (37, 546445419), (39, 518422577), (43, 470197221), (111, 182148473), (129, 156732407), (481, 42034263), (499, 40517997), (559, 36169017), (653, 30962451), (1443, 14011421), (1497, 13505999), (1591, 12708033), (1677, 12056339), (1959, 10320817), (4773, 4236011), (6487, 3116769), (8489, 2381727), (18463, 1095081), (19461, 1038923), (20683, 977541), (21457, 942279), (24161, 836823), (25467, 793909), (28079, 720057), (55389, 365027), (62049, 325847), (64371, 314093), (72483, 278941), (84237, 240019)]