21259458

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:300

約数の個数: 72

約数和(自身を含む): 52035984

約数和(自身を除く): 30776526

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 43, 66, 86, 99, 121, 129, 198, 227, 242, 258, 363, 387, 454, 473, 681, 726, 774, 946, 1089, 1362, 1419, 2043, 2178, 2497, 2838, 4086, 4257, 4994, 5203, 7491, 8514, 9761, 10406, 14982, 15609, 19522, 22473, 27467, 29283, 31218, 44946, 46827, 54934, 58566, 82401, 87849, 93654, 107371, 164802, 175698, 214742, 247203, 322113, 494406, 644226, 966339, 1181081, 1932678, 2362162, 3543243, 7086486, 10629729, 21259458]

約数ペア:

[(1, 21259458), (2, 10629729), (3, 7086486), (6, 3543243), (9, 2362162), (11, 1932678), (18, 1181081), (22, 966339), (33, 644226), (43, 494406), (66, 322113), (86, 247203), (99, 214742), (121, 175698), (129, 164802), (198, 107371), (227, 93654), (242, 87849), (258, 82401), (363, 58566), (387, 54934), (454, 46827), (473, 44946), (681, 31218), (726, 29283), (774, 27467), (946, 22473), (1089, 19522), (1362, 15609), (1419, 14982), (2043, 10406), (2178, 9761), (2497, 8514), (2838, 7491), (4086, 5203), (4257, 4994)]