291213286

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:485

約数の個数: 64

約数和(自身を含む): 556351488

約数和(自身を除く): 265138202

約数列:

[1, 2, 7, 13, 14, 26, 43, 86, 91, 127, 182, 254, 293, 301, 559, 586, 602, 889, 1118, 1651, 1778, 2051, 3302, 3809, 3913, 4102, 5461, 7618, 7826, 10922, 11557, 12599, 23114, 25198, 26663, 37211, 38227, 53326, 70993, 74422, 76454, 88193, 141986, 163787, 176386, 260477, 327574, 483743, 496951, 520954, 967486, 993902, 1146509, 1600073, 2293018, 3200146, 3386201, 6772402, 11200511, 20800949, 22401022, 41601898, 145606643, 291213286]

約数ペア:

[(1, 291213286), (2, 145606643), (7, 41601898), (13, 22401022), (14, 20800949), (26, 11200511), (43, 6772402), (86, 3386201), (91, 3200146), (127, 2293018), (182, 1600073), (254, 1146509), (293, 993902), (301, 967486), (559, 520954), (586, 496951), (602, 483743), (889, 327574), (1118, 260477), (1651, 176386), (1778, 163787), (2051, 141986), (3302, 88193), (3809, 76454), (3913, 74422), (4102, 70993), (5461, 53326), (7618, 38227), (7826, 37211), (10922, 26663), (11557, 25198), (12599, 23114)]