131567487779

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{391921}}^1$

素因数の和:391996

約数の個数: 48

約数和(自身を含む): 180146163456

約数和(自身を除く): 48578675677

約数列:

[1, 7, 13, 17, 31, 49, 91, 119, 217, 221, 403, 527, 637, 833, 1519, 1547, 2821, 3689, 6851, 10829, 19747, 25823, 47957, 335699, 391921, 2743447, 5094973, 6662657, 12149551, 19204129, 35664811, 46638599, 85046857, 86614541, 157944163, 206542367, 249653677, 326470193, 595327999, 606301787, 1105609141, 1445796569, 2685050771, 4244112509, 7739263987, 10120575983, 18795355397, 131567487779]

約数ペア:

[(1, 131567487779), (7, 18795355397), (13, 10120575983), (17, 7739263987), (31, 4244112509), (49, 2685050771), (91, 1445796569), (119, 1105609141), (217, 606301787), (221, 595327999), (403, 326470193), (527, 249653677), (637, 206542367), (833, 157944163), (1519, 86614541), (1547, 85046857), (2821, 46638599), (3689, 35664811), (6851, 19204129), (10829, 12149551), (19747, 6662657), (25823, 5094973), (47957, 2743447), (335699, 391921)]