20806511715

素因数分解:

$3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1556791}}^1$

素因数の和:1556822

約数の個数: 48

約数和(自身を含む): 40800404736

約数和(自身を除く): 19993893021

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 243, 297, 405, 495, 891, 1215, 1485, 2673, 4455, 13365, 1556791, 4670373, 7783955, 14011119, 17124701, 23351865, 42033357, 51374103, 70055595, 85623505, 126100071, 154122309, 210166785, 256870515, 378300213, 462366927, 630500355, 770611545, 1387100781, 1891501065, 2311834635, 4161302343, 6935503905, 20806511715]

約数ペア:

[(1, 20806511715), (3, 6935503905), (5, 4161302343), (9, 2311834635), (11, 1891501065), (15, 1387100781), (27, 770611545), (33, 630500355), (45, 462366927), (55, 378300213), (81, 256870515), (99, 210166785), (135, 154122309), (165, 126100071), (243, 85623505), (297, 70055595), (405, 51374103), (495, 42033357), (891, 23351865), (1215, 17124701), (1485, 14011119), (2673, 7783955), (4455, 4670373), (13365, 1556791)]