21446865

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1171}}^1$

素因数の和:1230

約数の個数: 48

約数和(自身を含む): 41685696

約数和(自身を除く): 20238831

約数列:

[1, 3, 5, 9, 11, 15, 33, 37, 45, 55, 99, 111, 165, 185, 333, 407, 495, 555, 1171, 1221, 1665, 2035, 3513, 3663, 5855, 6105, 10539, 12881, 17565, 18315, 38643, 43327, 52695, 64405, 115929, 129981, 193215, 216635, 389943, 476597, 579645, 649905, 1429791, 1949715, 2382985, 4289373, 7148955, 21446865]

約数ペア:

[(1, 21446865), (3, 7148955), (5, 4289373), (9, 2382985), (11, 1949715), (15, 1429791), (33, 649905), (37, 579645), (45, 476597), (55, 389943), (99, 216635), (111, 193215), (165, 129981), (185, 115929), (333, 64405), (407, 52695), (495, 43327), (555, 38643), (1171, 18315), (1221, 17565), (1665, 12881), (2035, 10539), (3513, 6105), (3663, 5855)]