19912956

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:243

約数の個数: 96

約数和(自身を含む): 56179200

約数和(自身を除く): 36266244

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 43, 74, 84, 86, 111, 129, 148, 149, 172, 222, 258, 259, 298, 301, 444, 447, 516, 518, 596, 602, 777, 894, 903, 1036, 1043, 1204, 1554, 1591, 1788, 1806, 2086, 3108, 3129, 3182, 3612, 4172, 4773, 5513, 6258, 6364, 6407, 9546, 11026, 11137, 12516, 12814, 16539, 19092, 19221, 22052, 22274, 25628, 33078, 33411, 38442, 38591, 44548, 44849, 66156, 66822, 76884, 77182, 89698, 115773, 133644, 134547, 154364, 179396, 231546, 237059, 269094, 463092, 474118, 538188, 711177, 948236, 1422354, 1659413, 2844708, 3318826, 4978239, 6637652, 9956478, 19912956]

約数ペア:

[(1, 19912956), (2, 9956478), (3, 6637652), (4, 4978239), (6, 3318826), (7, 2844708), (12, 1659413), (14, 1422354), (21, 948236), (28, 711177), (37, 538188), (42, 474118), (43, 463092), (74, 269094), (84, 237059), (86, 231546), (111, 179396), (129, 154364), (148, 134547), (149, 133644), (172, 115773), (222, 89698), (258, 77182), (259, 76884), (298, 66822), (301, 66156), (444, 44849), (447, 44548), (516, 38591), (518, 38442), (596, 33411), (602, 33078), (777, 25628), (894, 22274), (903, 22052), (1036, 19221), (1043, 19092), (1204, 16539), (1554, 12814), (1591, 12516), (1788, 11137), (1806, 11026), (2086, 9546), (3108, 6407), (3129, 6364), (3182, 6258), (3612, 5513), (4172, 4773)]