19912354

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:191

約数の個数: 64

約数和(自身を含む): 39739392

約数和(自身を除く): 19827038

約数列:

[1, 2, 7, 11, 14, 22, 31, 43, 62, 77, 86, 97, 154, 194, 217, 301, 341, 434, 473, 602, 679, 682, 946, 1067, 1333, 1358, 2134, 2387, 2666, 3007, 3311, 4171, 4774, 6014, 6622, 7469, 8342, 9331, 14663, 14938, 18662, 21049, 29197, 29326, 33077, 42098, 45881, 58394, 66154, 91762, 102641, 129301, 205282, 231539, 258602, 321167, 463078, 642334, 905107, 1422311, 1810214, 2844622, 9956177, 19912354]

約数ペア:

[(1, 19912354), (2, 9956177), (7, 2844622), (11, 1810214), (14, 1422311), (22, 905107), (31, 642334), (43, 463078), (62, 321167), (77, 258602), (86, 231539), (97, 205282), (154, 129301), (194, 102641), (217, 91762), (301, 66154), (341, 58394), (434, 45881), (473, 42098), (602, 33077), (679, 29326), (682, 29197), (946, 21049), (1067, 18662), (1333, 14938), (1358, 14663), (2134, 9331), (2387, 8342), (2666, 7469), (3007, 6622), (3311, 6014), (4171, 4774)]