218971305

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:535

約数の個数: 96

約数和(自身を含む): 464914944

約数和(自身を除く): 245943639

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 103, 105, 119, 153, 255, 309, 315, 357, 397, 515, 595, 721, 765, 927, 1071, 1191, 1545, 1751, 1785, 1985, 2163, 2779, 3573, 3605, 4635, 5253, 5355, 5955, 6489, 6749, 8337, 8755, 10815, 12257, 13895, 15759, 17865, 20247, 25011, 26265, 32445, 33745, 36771, 40891, 41685, 47243, 60741, 61285, 78795, 101235, 110313, 122673, 125055, 141729, 183855, 204455, 236215, 286237, 303705, 368019, 425187, 551565, 613365, 695147, 708645, 858711, 1431185, 1840095, 2085441, 2125935, 2576133, 3475735, 4293555, 4866029, 6256323, 10427205, 12880665, 14598087, 24330145, 31281615, 43794261, 72990435, 218971305]

約数ペア:

[(1, 218971305), (3, 72990435), (5, 43794261), (7, 31281615), (9, 24330145), (15, 14598087), (17, 12880665), (21, 10427205), (35, 6256323), (45, 4866029), (51, 4293555), (63, 3475735), (85, 2576133), (103, 2125935), (105, 2085441), (119, 1840095), (153, 1431185), (255, 858711), (309, 708645), (315, 695147), (357, 613365), (397, 551565), (515, 425187), (595, 368019), (721, 303705), (765, 286237), (927, 236215), (1071, 204455), (1191, 183855), (1545, 141729), (1751, 125055), (1785, 122673), (1985, 110313), (2163, 101235), (2779, 78795), (3573, 61285), (3605, 60741), (4635, 47243), (5253, 41685), (5355, 40891), (5955, 36771), (6489, 33745), (6749, 32445), (8337, 26265), (8755, 25011), (10815, 20247), (12257, 17865), (13895, 15759)]