21709116

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4217}}^1$

素因数の和:4251

約数の個数: 72

約数和(自身を含む): 64484784

約数和(自身を除く): 42775668

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 198, 234, 286, 396, 429, 468, 572, 858, 1287, 1716, 2574, 4217, 5148, 8434, 12651, 16868, 25302, 37953, 46387, 50604, 54821, 75906, 92774, 109642, 139161, 151812, 164463, 185548, 219284, 278322, 328926, 417483, 493389, 556644, 603031, 657852, 834966, 986778, 1206062, 1669932, 1809093, 1973556, 2412124, 3618186, 5427279, 7236372, 10854558, 21709116]

約数ペア:

[(1, 21709116), (2, 10854558), (3, 7236372), (4, 5427279), (6, 3618186), (9, 2412124), (11, 1973556), (12, 1809093), (13, 1669932), (18, 1206062), (22, 986778), (26, 834966), (33, 657852), (36, 603031), (39, 556644), (44, 493389), (52, 417483), (66, 328926), (78, 278322), (99, 219284), (117, 185548), (132, 164463), (143, 151812), (156, 139161), (198, 109642), (234, 92774), (286, 75906), (396, 54821), (429, 50604), (468, 46387), (572, 37953), (858, 25302), (1287, 16868), (1716, 12651), (2574, 8434), (4217, 5148)]