261219399

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^2\times {\mathrm{163}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 430472448

約数和(自身を除く): 169253049

約数列:

[1, 3, 7, 17, 21, 51, 67, 119, 163, 201, 357, 469, 489, 1139, 1141, 1407, 2771, 3417, 3423, 4489, 7973, 8313, 10921, 13467, 19397, 23919, 31423, 32763, 58191, 76313, 76447, 94269, 185657, 228939, 229341, 534191, 556971, 731707, 1299599, 1602573, 2195121, 3898797, 5121949, 12439019, 15365847, 37317057, 87073133, 261219399]

約数ペア:

[(1, 261219399), (3, 87073133), (7, 37317057), (17, 15365847), (21, 12439019), (51, 5121949), (67, 3898797), (119, 2195121), (163, 1602573), (201, 1299599), (357, 731707), (469, 556971), (489, 534191), (1139, 229341), (1141, 228939), (1407, 185657), (2771, 94269), (3417, 76447), (3423, 76313), (4489, 58191), (7973, 32763), (8313, 31423), (10921, 23919), (13467, 19397)]