213624719

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 275208192

約数和(自身を除く): 61583473

約数列:

[1, 7, 11, 41, 77, 157, 287, 431, 451, 1099, 1727, 3017, 3157, 4741, 6437, 12089, 17671, 33187, 45059, 67667, 70807, 123697, 194381, 473669, 495649, 744337, 1360667, 2774347, 5210359, 19420429, 30517817, 213624719]

約数ペア:

[(1, 213624719), (7, 30517817), (11, 19420429), (41, 5210359), (77, 2774347), (157, 1360667), (287, 744337), (431, 495649), (451, 473669), (1099, 194381), (1727, 123697), (3017, 70807), (3157, 67667), (4741, 45059), (6437, 33187), (12089, 17671)]