19905564

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{349}}^1$

素因数の和:467

約数の個数: 72

約数和(自身を含む): 54742800

約数和(自身を除く): 34837236

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 97, 98, 147, 194, 196, 291, 294, 349, 388, 582, 588, 679, 698, 1047, 1164, 1358, 1396, 2037, 2094, 2443, 2716, 4074, 4188, 4753, 4886, 7329, 8148, 9506, 9772, 14259, 14658, 17101, 19012, 28518, 29316, 33853, 34202, 51303, 57036, 67706, 68404, 101559, 102606, 135412, 203118, 205212, 236971, 406236, 473942, 710913, 947884, 1421826, 1658797, 2843652, 3317594, 4976391, 6635188, 9952782, 19905564]

約数ペア:

[(1, 19905564), (2, 9952782), (3, 6635188), (4, 4976391), (6, 3317594), (7, 2843652), (12, 1658797), (14, 1421826), (21, 947884), (28, 710913), (42, 473942), (49, 406236), (84, 236971), (97, 205212), (98, 203118), (147, 135412), (194, 102606), (196, 101559), (291, 68404), (294, 67706), (349, 57036), (388, 51303), (582, 34202), (588, 33853), (679, 29316), (698, 28518), (1047, 19012), (1164, 17101), (1358, 14658), (1396, 14259), (2037, 9772), (2094, 9506), (2443, 8148), (2716, 7329), (4074, 4886), (4188, 4753)]