21422478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:633

約数の個数: 64

約数和(自身を含む): 54120960

約数和(自身を除く): 32698482

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 89, 154, 178, 231, 267, 462, 521, 534, 623, 979, 1042, 1246, 1563, 1869, 1958, 2937, 3126, 3647, 3738, 5731, 5874, 6853, 7294, 10941, 11462, 13706, 17193, 20559, 21882, 34386, 40117, 41118, 46369, 80234, 92738, 120351, 139107, 240702, 278214, 324583, 510059, 649166, 973749, 1020118, 1530177, 1947498, 3060354, 3570413, 7140826, 10711239, 21422478]

約数ペア:

[(1, 21422478), (2, 10711239), (3, 7140826), (6, 3570413), (7, 3060354), (11, 1947498), (14, 1530177), (21, 1020118), (22, 973749), (33, 649166), (42, 510059), (66, 324583), (77, 278214), (89, 240702), (154, 139107), (178, 120351), (231, 92738), (267, 80234), (462, 46369), (521, 41118), (534, 40117), (623, 34386), (979, 21882), (1042, 20559), (1246, 17193), (1563, 13706), (1869, 11462), (1958, 10941), (2937, 7294), (3126, 6853), (3647, 5874), (3738, 5731)]