19981122

素因数分解:

$2^1\times 3^1\times 7^4\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:125

約数の個数: 80

約数和(自身を含む): 49745760

約数和(自身を除く): 29764638

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 49, 57, 73, 98, 114, 133, 146, 147, 219, 266, 294, 343, 399, 438, 511, 686, 798, 931, 1022, 1029, 1387, 1533, 1862, 2058, 2401, 2774, 2793, 3066, 3577, 4161, 4802, 5586, 6517, 7154, 7203, 8322, 9709, 10731, 13034, 14406, 19418, 19551, 21462, 25039, 29127, 39102, 45619, 50078, 58254, 67963, 75117, 91238, 135926, 136857, 150234, 175273, 203889, 273714, 350546, 407778, 475741, 525819, 951482, 1051638, 1427223, 2854446, 3330187, 6660374, 9990561, 19981122]

約数ペア:

[(1, 19981122), (2, 9990561), (3, 6660374), (6, 3330187), (7, 2854446), (14, 1427223), (19, 1051638), (21, 951482), (38, 525819), (42, 475741), (49, 407778), (57, 350546), (73, 273714), (98, 203889), (114, 175273), (133, 150234), (146, 136857), (147, 135926), (219, 91238), (266, 75117), (294, 67963), (343, 58254), (399, 50078), (438, 45619), (511, 39102), (686, 29127), (798, 25039), (931, 21462), (1022, 19551), (1029, 19418), (1387, 14406), (1533, 13034), (1862, 10731), (2058, 9709), (2401, 8322), (2774, 7203), (2793, 7154), (3066, 6517), (3577, 5586), (4161, 4802)]