981762873

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1999}}^1$

素因数の和:2286

約数の個数: 48

約数和(自身を含む): 1647072000

約数和(自身を除く): 665309127

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 257, 273, 637, 771, 1799, 1911, 1999, 3341, 5397, 5997, 10023, 12593, 13993, 23387, 25987, 37779, 41979, 70161, 77961, 97951, 163709, 181909, 293853, 491127, 513743, 545727, 1273363, 1541229, 3596201, 3820089, 6678659, 10788603, 20035977, 25173407, 46750613, 75520221, 140251839, 327254291, 981762873]

約数ペア:

[(1, 981762873), (3, 327254291), (7, 140251839), (13, 75520221), (21, 46750613), (39, 25173407), (49, 20035977), (91, 10788603), (147, 6678659), (257, 3820089), (273, 3596201), (637, 1541229), (771, 1273363), (1799, 545727), (1911, 513743), (1999, 491127), (3341, 293853), (5397, 181909), (5997, 163709), (10023, 97951), (12593, 77961), (13993, 70161), (23387, 41979), (25987, 37779)]