21797468

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:243

約数の個数: 96

約数和(自身を含む): 52835328

約数和(自身を除く): 31037860

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 23, 28, 34, 44, 46, 68, 77, 92, 119, 154, 161, 181, 187, 238, 253, 308, 322, 362, 374, 391, 476, 506, 644, 724, 748, 782, 1012, 1267, 1309, 1564, 1771, 1991, 2534, 2618, 2737, 3077, 3542, 3982, 4163, 4301, 5068, 5236, 5474, 6154, 7084, 7964, 8326, 8602, 10948, 12308, 13937, 16652, 17204, 21539, 27874, 29141, 30107, 33847, 43078, 45793, 55748, 58282, 60214, 67694, 70771, 86156, 91586, 116564, 120428, 135388, 141542, 183172, 236929, 283084, 320551, 473858, 495397, 641102, 778481, 947716, 990794, 1282204, 1556962, 1981588, 3113924, 5449367, 10898734, 21797468]

約数ペア:

[(1, 21797468), (2, 10898734), (4, 5449367), (7, 3113924), (11, 1981588), (14, 1556962), (17, 1282204), (22, 990794), (23, 947716), (28, 778481), (34, 641102), (44, 495397), (46, 473858), (68, 320551), (77, 283084), (92, 236929), (119, 183172), (154, 141542), (161, 135388), (181, 120428), (187, 116564), (238, 91586), (253, 86156), (308, 70771), (322, 67694), (362, 60214), (374, 58282), (391, 55748), (476, 45793), (506, 43078), (644, 33847), (724, 30107), (748, 29141), (782, 27874), (1012, 21539), (1267, 17204), (1309, 16652), (1564, 13937), (1771, 12308), (1991, 10948), (2534, 8602), (2618, 8326), (2737, 7964), (3077, 7084), (3542, 6154), (3982, 5474), (4163, 5236), (4301, 5068)]