20176736538

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{245477}}^1$

素因数の和:245611

約数の個数: 64

約数和(自身を含む): 49017047040

約数和(自身を除く): 28840310502

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 103, 114, 133, 206, 266, 309, 399, 618, 721, 798, 1442, 1957, 2163, 3914, 4326, 5871, 11742, 13699, 27398, 41097, 82194, 245477, 490954, 736431, 1472862, 1718339, 3436678, 4664063, 5155017, 9328126, 10310034, 13992189, 25284131, 27984378, 32648441, 50568262, 65296882, 75852393, 97945323, 151704786, 176988917, 195890646, 353977834, 480398489, 530966751, 960796978, 1061933502, 1441195467, 2882390934, 3362789423, 6725578846, 10088368269, 20176736538]

約数ペア:

[(1, 20176736538), (2, 10088368269), (3, 6725578846), (6, 3362789423), (7, 2882390934), (14, 1441195467), (19, 1061933502), (21, 960796978), (38, 530966751), (42, 480398489), (57, 353977834), (103, 195890646), (114, 176988917), (133, 151704786), (206, 97945323), (266, 75852393), (309, 65296882), (399, 50568262), (618, 32648441), (721, 27984378), (798, 25284131), (1442, 13992189), (1957, 10310034), (2163, 9328126), (3914, 5155017), (4326, 4664063), (5871, 3436678), (11742, 1718339), (13699, 1472862), (27398, 736431), (41097, 490954), (82194, 245477)]