21848859

素因数分解:

$3^6\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:119

約数の個数: 56

約数和(自身を含む): 36357552

約数和(自身を除く): 14508693

約数列:

[1, 3, 9, 17, 27, 41, 43, 51, 81, 123, 129, 153, 243, 369, 387, 459, 697, 729, 731, 1107, 1161, 1377, 1763, 2091, 2193, 3321, 3483, 4131, 5289, 6273, 6579, 9963, 10449, 12393, 15867, 18819, 19737, 29889, 29971, 31347, 47601, 56457, 59211, 89913, 142803, 169371, 177633, 269739, 428409, 508113, 532899, 809217, 1285227, 2427651, 7282953, 21848859]

約数ペア:

[(1, 21848859), (3, 7282953), (9, 2427651), (17, 1285227), (27, 809217), (41, 532899), (43, 508113), (51, 428409), (81, 269739), (123, 177633), (129, 169371), (153, 142803), (243, 89913), (369, 59211), (387, 56457), (459, 47601), (697, 31347), (729, 29971), (731, 29889), (1107, 19737), (1161, 18819), (1377, 15867), (1763, 12393), (2091, 10449), (2193, 9963), (3321, 6579), (3483, 6273), (4131, 5289)]