2665719

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 4942080

約数和(自身を除く): 2276361

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 131, 133, 153, 171, 323, 357, 393, 399, 917, 969, 1071, 1179, 1197, 2227, 2261, 2489, 2751, 2907, 6681, 6783, 7467, 8253, 15589, 17423, 20043, 20349, 22401, 42313, 46767, 52269, 126939, 140301, 156807, 296191, 380817, 888573, 2665719]

約数ペア:

[(1, 2665719), (3, 888573), (7, 380817), (9, 296191), (17, 156807), (19, 140301), (21, 126939), (51, 52269), (57, 46767), (63, 42313), (119, 22401), (131, 20349), (133, 20043), (153, 17423), (171, 15589), (323, 8253), (357, 7467), (393, 6783), (399, 6681), (917, 2907), (969, 2751), (1071, 2489), (1179, 2261), (1197, 2227)]