20997438

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{967}}^1$

素因数の和:1037

約数の個数: 64

約数和(自身を含む): 53526528

約数和(自身を除く): 32529090

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 47, 66, 77, 94, 141, 154, 231, 282, 329, 462, 517, 658, 967, 987, 1034, 1551, 1934, 1974, 2901, 3102, 3619, 5802, 6769, 7238, 10637, 10857, 13538, 20307, 21274, 21714, 31911, 40614, 45449, 63822, 74459, 90898, 136347, 148918, 223377, 272694, 318143, 446754, 499939, 636286, 954429, 999878, 1499817, 1908858, 2999634, 3499573, 6999146, 10498719, 20997438]

約数ペア:

[(1, 20997438), (2, 10498719), (3, 6999146), (6, 3499573), (7, 2999634), (11, 1908858), (14, 1499817), (21, 999878), (22, 954429), (33, 636286), (42, 499939), (47, 446754), (66, 318143), (77, 272694), (94, 223377), (141, 148918), (154, 136347), (231, 90898), (282, 74459), (329, 63822), (462, 45449), (517, 40614), (658, 31911), (967, 21714), (987, 21274), (1034, 20307), (1551, 13538), (1934, 10857), (1974, 10637), (2901, 7238), (3102, 6769), (3619, 5802)]