209730906

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^2$

素因数の和:804

約数の個数: 72

約数和(自身を含む): 568005984

約数和(自身を除く): 358275078

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 389, 462, 693, 778, 1167, 1386, 2334, 2723, 3501, 4279, 5446, 7002, 8169, 8558, 12837, 16338, 24507, 25674, 29953, 38511, 49014, 59906, 77022, 89859, 151321, 179718, 269577, 302642, 453963, 539154, 907926, 1059247, 1361889, 1664531, 2118494, 2723778, 3177741, 3329062, 4993593, 6355482, 9533223, 9987186, 11651717, 14980779, 19066446, 23303434, 29961558, 34955151, 69910302, 104865453, 209730906]

約数ペア:

[(1, 209730906), (2, 104865453), (3, 69910302), (6, 34955151), (7, 29961558), (9, 23303434), (11, 19066446), (14, 14980779), (18, 11651717), (21, 9987186), (22, 9533223), (33, 6355482), (42, 4993593), (63, 3329062), (66, 3177741), (77, 2723778), (99, 2118494), (126, 1664531), (154, 1361889), (198, 1059247), (231, 907926), (389, 539154), (462, 453963), (693, 302642), (778, 269577), (1167, 179718), (1386, 151321), (2334, 89859), (2723, 77022), (3501, 59906), (4279, 49014), (5446, 38511), (7002, 29953), (8169, 25674), (8558, 24507), (12837, 16338)]