779898987

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{19681}}^1$

素因数の和:19748

約数の個数: 48

約数和(自身を含む): 1400098752

約数和(自身を除く): 620199765

約数列:

[1, 3, 7, 9, 17, 21, 37, 51, 63, 111, 119, 153, 259, 333, 357, 629, 777, 1071, 1887, 2331, 4403, 5661, 13209, 19681, 39627, 59043, 137767, 177129, 334577, 413301, 728197, 1003731, 1239903, 2184591, 2342039, 3011193, 5097379, 6553773, 7026117, 12379349, 15292137, 21078351, 37138047, 45876411, 86655443, 111414141, 259966329, 779898987]

約数ペア:

[(1, 779898987), (3, 259966329), (7, 111414141), (9, 86655443), (17, 45876411), (21, 37138047), (37, 21078351), (51, 15292137), (63, 12379349), (111, 7026117), (119, 6553773), (153, 5097379), (259, 3011193), (333, 2342039), (357, 2184591), (629, 1239903), (777, 1003731), (1071, 728197), (1887, 413301), (2331, 334577), (4403, 177129), (5661, 137767), (13209, 59043), (19681, 39627)]