2149245819

素因数分解:

$3^9\times 7^1\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:874

約数の個数: 80

約数和(自身を含む): 3882996480

約数和(自身を除く): 1733750661

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 243, 399, 513, 567, 729, 821, 1197, 1539, 1701, 2187, 2463, 3591, 4617, 5103, 5747, 6561, 7389, 10773, 13851, 15309, 15599, 17241, 19683, 22167, 32319, 41553, 45927, 46797, 51723, 66501, 96957, 109193, 124659, 137781, 140391, 155169, 199503, 290871, 327579, 373977, 421173, 465507, 598509, 872613, 982737, 1263519, 1396521, 1795527, 2617839, 2948211, 3790557, 4189563, 5386581, 8844633, 11371671, 12568689, 16159743, 26533899, 34115013, 37706067, 79601697, 102345039, 113118201, 238805091, 307035117, 716415273, 2149245819]

約数ペア:

[(1, 2149245819), (3, 716415273), (7, 307035117), (9, 238805091), (19, 113118201), (21, 102345039), (27, 79601697), (57, 37706067), (63, 34115013), (81, 26533899), (133, 16159743), (171, 12568689), (189, 11371671), (243, 8844633), (399, 5386581), (513, 4189563), (567, 3790557), (729, 2948211), (821, 2617839), (1197, 1795527), (1539, 1396521), (1701, 1263519), (2187, 982737), (2463, 872613), (3591, 598509), (4617, 465507), (5103, 421173), (5747, 373977), (6561, 327579), (7389, 290871), (10773, 199503), (13851, 155169), (15309, 140391), (15599, 137781), (17241, 124659), (19683, 109193), (22167, 96957), (32319, 66501), (41553, 51723), (45927, 46797)]