21208734813

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1\times {\mathrm{1583}}^1$

素因数の和:2074

約数の個数: 64

約数和(自身を含む): 34069635072

約数和(自身を除く): 12860900259

約数列:

[1, 3, 7, 21, 37, 43, 111, 129, 259, 301, 401, 777, 903, 1203, 1583, 1591, 2807, 4749, 4773, 8421, 11081, 11137, 14837, 17243, 33243, 33411, 44511, 51729, 58571, 68069, 103859, 120701, 175713, 204207, 311577, 362103, 409997, 476483, 634783, 637991, 1229991, 1429449, 1904349, 1913973, 2518553, 4443481, 4465937, 7555659, 13330443, 13397811, 17629871, 23486971, 27295669, 52889613, 70460913, 81887007, 164408797, 191069683, 493226391, 573209049, 1009939753, 3029819259, 7069578271, 21208734813]

約数ペア:

[(1, 21208734813), (3, 7069578271), (7, 3029819259), (21, 1009939753), (37, 573209049), (43, 493226391), (111, 191069683), (129, 164408797), (259, 81887007), (301, 70460913), (401, 52889613), (777, 27295669), (903, 23486971), (1203, 17629871), (1583, 13397811), (1591, 13330443), (2807, 7555659), (4749, 4465937), (4773, 4443481), (8421, 2518553), (11081, 1913973), (11137, 1904349), (14837, 1429449), (17243, 1229991), (33243, 637991), (33411, 634783), (44511, 476483), (51729, 409997), (58571, 362103), (68069, 311577), (103859, 204207), (120701, 175713)]