21014778727915

素因数分解:

$5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1\times {\mathrm{821}}^1\times {\mathrm{29231}}^1$

素因数の和:30388

約数の個数: 64

約数和(自身を含む): 29231206760448

約数和(自身を除く): 8216428032533

約数列:

[1, 5, 7, 35, 127, 197, 635, 821, 889, 985, 1379, 4105, 4445, 5747, 6895, 25019, 28735, 29231, 104267, 125095, 146155, 161737, 175133, 204617, 521335, 729869, 808685, 875665, 1023085, 1132159, 3649345, 3712337, 5660795, 5758507, 18561685, 20540599, 23998651, 25986359, 28792535, 40309549, 102702995, 119993255, 129931795, 143784193, 167990557, 201547745, 718920965, 731330389, 839952785, 3047828677, 3656651945, 4727734247, 5119312723, 15239143385, 21334800739, 23638671235, 25596563615, 33094139729, 106674003695, 165470698645, 600422249369, 3002111246845, 4202955745583, 21014778727915]

約数ペア:

[(1, 21014778727915), (5, 4202955745583), (7, 3002111246845), (35, 600422249369), (127, 165470698645), (197, 106674003695), (635, 33094139729), (821, 25596563615), (889, 23638671235), (985, 21334800739), (1379, 15239143385), (4105, 5119312723), (4445, 4727734247), (5747, 3656651945), (6895, 3047828677), (25019, 839952785), (28735, 731330389), (29231, 718920965), (104267, 201547745), (125095, 167990557), (146155, 143784193), (161737, 129931795), (175133, 119993255), (204617, 102702995), (521335, 40309549), (729869, 28792535), (808685, 25986359), (875665, 23998651), (1023085, 20540599), (1132159, 18561685), (3649345, 5758507), (3712337, 5660795)]