81131589

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{367}}^1$

素因数の和:431

約数の個数: 72

約数和(自身を含む): 152705280

約数和(自身を除く): 71573691

約数列:

[1, 3, 7, 9, 11, 21, 29, 33, 63, 77, 87, 99, 121, 203, 231, 261, 319, 363, 367, 609, 693, 847, 957, 1089, 1101, 1827, 2233, 2541, 2569, 2871, 3303, 3509, 4037, 6699, 7623, 7707, 10527, 10643, 12111, 20097, 23121, 24563, 28259, 31581, 31929, 36333, 44407, 73689, 74501, 84777, 95787, 117073, 133221, 221067, 223503, 254331, 310849, 351219, 399663, 670509, 819511, 932547, 1053657, 1287803, 2458533, 2797641, 3863409, 7375599, 9014621, 11590227, 27043863, 81131589]

約数ペア:

[(1, 81131589), (3, 27043863), (7, 11590227), (9, 9014621), (11, 7375599), (21, 3863409), (29, 2797641), (33, 2458533), (63, 1287803), (77, 1053657), (87, 932547), (99, 819511), (121, 670509), (203, 399663), (231, 351219), (261, 310849), (319, 254331), (363, 223503), (367, 221067), (609, 133221), (693, 117073), (847, 95787), (957, 84777), (1089, 74501), (1101, 73689), (1827, 44407), (2233, 36333), (2541, 31929), (2569, 31581), (2871, 28259), (3303, 24563), (3509, 23121), (4037, 20097), (6699, 12111), (7623, 10643), (7707, 10527)]