391552551

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{797}}^1$

素因数の和:865

約数の個数: 72

約数和(自身を含む): 683439120

約数和(自身を除く): 291886569

約数列:

[1, 3, 9, 13, 17, 19, 39, 51, 57, 117, 153, 169, 171, 221, 247, 323, 507, 663, 741, 797, 969, 1521, 1989, 2223, 2391, 2873, 2907, 3211, 4199, 7173, 8619, 9633, 10361, 12597, 13549, 15143, 25857, 28899, 31083, 37791, 40647, 45429, 54587, 93249, 121941, 134693, 136287, 163761, 176137, 196859, 257431, 404079, 491283, 528411, 590577, 772293, 1212237, 1585233, 1771731, 2289781, 2316879, 2559167, 3346603, 6869343, 7677501, 10039809, 20608029, 23032503, 30119427, 43505839, 130517517, 391552551]

約数ペア:

[(1, 391552551), (3, 130517517), (9, 43505839), (13, 30119427), (17, 23032503), (19, 20608029), (39, 10039809), (51, 7677501), (57, 6869343), (117, 3346603), (153, 2559167), (169, 2316879), (171, 2289781), (221, 1771731), (247, 1585233), (323, 1212237), (507, 772293), (663, 590577), (741, 528411), (797, 491283), (969, 404079), (1521, 257431), (1989, 196859), (2223, 176137), (2391, 163761), (2873, 136287), (2907, 134693), (3211, 121941), (4199, 93249), (7173, 54587), (8619, 45429), (9633, 40647), (10361, 37791), (12597, 31083), (13549, 28899), (15143, 25857)]