16780869

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{313}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 29782272

約数和(自身を除く): 13001403

約数列:

[1, 3, 7, 9, 21, 23, 37, 63, 69, 111, 161, 207, 259, 313, 333, 483, 777, 851, 939, 1449, 2191, 2331, 2553, 2817, 5957, 6573, 7199, 7659, 11581, 17871, 19719, 21597, 34743, 50393, 53613, 64791, 81067, 104229, 151179, 243201, 266363, 453537, 729603, 799089, 1864541, 2397267, 5593623, 16780869]

約数ペア:

[(1, 16780869), (3, 5593623), (7, 2397267), (9, 1864541), (21, 799089), (23, 729603), (37, 453537), (63, 266363), (69, 243201), (111, 151179), (161, 104229), (207, 81067), (259, 64791), (313, 53613), (333, 50393), (483, 34743), (777, 21597), (851, 19719), (939, 17871), (1449, 11581), (2191, 7659), (2331, 7199), (2553, 6573), (2817, 5957)]