221416755

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{761}}^1$

素因数の和:956

約数の個数: 64

約数和(自身を含む): 431889408

約数和(自身を除く): 210472653

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 163, 255, 357, 489, 595, 761, 815, 1141, 1785, 2283, 2445, 2771, 3423, 3805, 5327, 5705, 8313, 11415, 12937, 13855, 15981, 17115, 19397, 26635, 38811, 41565, 58191, 64685, 79905, 90559, 96985, 124043, 194055, 271677, 290955, 372129, 452795, 620215, 868301, 1358385, 1860645, 2108731, 2604903, 4341505, 6326193, 10543655, 13024515, 14761117, 31630965, 44283351, 73805585, 221416755]

約数ペア:

[(1, 221416755), (3, 73805585), (5, 44283351), (7, 31630965), (15, 14761117), (17, 13024515), (21, 10543655), (35, 6326193), (51, 4341505), (85, 2604903), (105, 2108731), (119, 1860645), (163, 1358385), (255, 868301), (357, 620215), (489, 452795), (595, 372129), (761, 290955), (815, 271677), (1141, 194055), (1785, 124043), (2283, 96985), (2445, 90559), (2771, 79905), (3423, 64685), (3805, 58191), (5327, 41565), (5705, 38811), (8313, 26635), (11415, 19397), (12937, 17115), (13855, 15981)]