20958938

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1$

素因数の和:100

約数の個数: 96

約数和(自身を含む): 46085760

約数和(自身を除く): 25126822

約数列:

[1, 2, 7, 11, 13, 14, 19, 22, 26, 29, 38, 58, 77, 91, 133, 143, 154, 182, 203, 209, 247, 266, 286, 319, 361, 377, 406, 418, 494, 551, 638, 722, 754, 1001, 1102, 1463, 1729, 2002, 2233, 2527, 2639, 2717, 2926, 3458, 3857, 3971, 4147, 4466, 4693, 5054, 5278, 5434, 6061, 7163, 7714, 7942, 8294, 9386, 10469, 12122, 14326, 19019, 20938, 27797, 29029, 32851, 38038, 42427, 50141, 51623, 55594, 58058, 65702, 73283, 78793, 84854, 100282, 103246, 115159, 136097, 146566, 157586, 230318, 272194, 361361, 551551, 722722, 806113, 952679, 1103102, 1497067, 1612226, 1905358, 2994134, 10479469, 20958938]

約数ペア:

[(1, 20958938), (2, 10479469), (7, 2994134), (11, 1905358), (13, 1612226), (14, 1497067), (19, 1103102), (22, 952679), (26, 806113), (29, 722722), (38, 551551), (58, 361361), (77, 272194), (91, 230318), (133, 157586), (143, 146566), (154, 136097), (182, 115159), (203, 103246), (209, 100282), (247, 84854), (266, 78793), (286, 73283), (319, 65702), (361, 58058), (377, 55594), (406, 51623), (418, 50141), (494, 42427), (551, 38038), (638, 32851), (722, 29029), (754, 27797), (1001, 20938), (1102, 19019), (1463, 14326), (1729, 12122), (2002, 10469), (2233, 9386), (2527, 8294), (2639, 7942), (2717, 7714), (2926, 7163), (3458, 6061), (3857, 5434), (3971, 5278), (4147, 5054), (4466, 4693)]