21497897168

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1\times {\mathrm{7927}}^1$

素因数の和:8776

約数の個数: 80

約数和(自身を含む): 47895267840

約数和(自身を除く): 26397370672

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 811, 836, 1622, 1672, 3244, 3344, 6488, 7927, 8921, 12976, 15409, 15854, 17842, 30818, 31708, 35684, 61636, 63416, 71368, 87197, 123272, 126832, 142736, 150613, 169499, 174394, 246544, 301226, 338998, 348788, 602452, 677996, 697576, 1204904, 1355992, 1395152, 1656743, 2409808, 2711984, 3313486, 6428797, 6626972, 12857594, 13253944, 25715188, 26507888, 51430376, 70716767, 102860752, 122147143, 141433534, 244294286, 282867068, 488588572, 565734136, 977177144, 1131468272, 1343618573, 1954354288, 2687237146, 5374474292, 10748948584, 21497897168]

約数ペア:

[(1, 21497897168), (2, 10748948584), (4, 5374474292), (8, 2687237146), (11, 1954354288), (16, 1343618573), (19, 1131468272), (22, 977177144), (38, 565734136), (44, 488588572), (76, 282867068), (88, 244294286), (152, 141433534), (176, 122147143), (209, 102860752), (304, 70716767), (418, 51430376), (811, 26507888), (836, 25715188), (1622, 13253944), (1672, 12857594), (3244, 6626972), (3344, 6428797), (6488, 3313486), (7927, 2711984), (8921, 2409808), (12976, 1656743), (15409, 1395152), (15854, 1355992), (17842, 1204904), (30818, 697576), (31708, 677996), (35684, 602452), (61636, 348788), (63416, 338998), (71368, 301226), (87197, 246544), (123272, 174394), (126832, 169499), (142736, 150613)]