209219318

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{461}}^1$

素因数の和:909

約数の個数: 48

約数和(自身を含む): 400066128

約数和(自身を除く): 190846810

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 421, 461, 539, 842, 922, 1078, 2947, 3227, 4631, 5071, 5894, 6454, 9262, 10142, 20629, 22589, 32417, 35497, 41258, 45178, 64834, 70994, 194081, 226919, 248479, 388162, 453838, 496958, 1358567, 2134891, 2717134, 4269782, 9509969, 14944237, 19019938, 29888474, 104609659, 209219318]

約数ペア:

[(1, 209219318), (2, 104609659), (7, 29888474), (11, 19019938), (14, 14944237), (22, 9509969), (49, 4269782), (77, 2717134), (98, 2134891), (154, 1358567), (421, 496958), (461, 453838), (539, 388162), (842, 248479), (922, 226919), (1078, 194081), (2947, 70994), (3227, 64834), (4631, 45178), (5071, 41258), (5894, 35497), (6454, 32417), (9262, 22589), (10142, 20629)]