291196906

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1889}}^1$

素因数の和:1940

約数の個数: 72

約数和(自身を含む): 601779780

約数和(自身を除く): 310582874

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 49, 77, 91, 98, 121, 143, 154, 182, 242, 286, 539, 637, 847, 1001, 1078, 1274, 1573, 1694, 1889, 2002, 3146, 3778, 5929, 7007, 11011, 11858, 13223, 14014, 20779, 22022, 24557, 26446, 41558, 49114, 77077, 92561, 145453, 154154, 171899, 185122, 228569, 270127, 290906, 343798, 457138, 540254, 1018171, 1203293, 1599983, 1890889, 2036342, 2406586, 2971397, 3199966, 3781778, 5942794, 11199881, 13236223, 20799779, 22399762, 26472446, 41599558, 145598453, 291196906]

約数ペア:

[(1, 291196906), (2, 145598453), (7, 41599558), (11, 26472446), (13, 22399762), (14, 20799779), (22, 13236223), (26, 11199881), (49, 5942794), (77, 3781778), (91, 3199966), (98, 2971397), (121, 2406586), (143, 2036342), (154, 1890889), (182, 1599983), (242, 1203293), (286, 1018171), (539, 540254), (637, 457138), (847, 343798), (1001, 290906), (1078, 270127), (1274, 228569), (1573, 185122), (1694, 171899), (1889, 154154), (2002, 145453), (3146, 92561), (3778, 77077), (5929, 49114), (7007, 41558), (11011, 26446), (11858, 24557), (13223, 22022), (14014, 20779)]