20491716

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2741}}^1$

素因数の和:2844

約数の個数: 48

約数和(自身を含む): 55278720

約数和(自身を除く): 34787004

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 89, 178, 267, 356, 534, 623, 1068, 1246, 1869, 2492, 2741, 3738, 5482, 7476, 8223, 10964, 16446, 19187, 32892, 38374, 57561, 76748, 115122, 230244, 243949, 487898, 731847, 975796, 1463694, 1707643, 2927388, 3415286, 5122929, 6830572, 10245858, 20491716]

約数ペア:

[(1, 20491716), (2, 10245858), (3, 6830572), (4, 5122929), (6, 3415286), (7, 2927388), (12, 1707643), (14, 1463694), (21, 975796), (28, 731847), (42, 487898), (84, 243949), (89, 230244), (178, 115122), (267, 76748), (356, 57561), (534, 38374), (623, 32892), (1068, 19187), (1246, 16446), (1869, 10964), (2492, 8223), (2741, 7476), (3738, 5482)]