18538128

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:421

約数の個数: 120

約数和(自身を含む): 60585408

約数和(自身を除く): 42047280

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 53, 56, 63, 72, 84, 106, 112, 126, 144, 159, 168, 212, 252, 318, 336, 347, 371, 424, 477, 504, 636, 694, 742, 848, 954, 1008, 1041, 1113, 1272, 1388, 1484, 1908, 2082, 2226, 2429, 2544, 2776, 2968, 3123, 3339, 3816, 4164, 4452, 4858, 5552, 5936, 6246, 6678, 7287, 7632, 8328, 8904, 9716, 12492, 13356, 14574, 16656, 17808, 18391, 19432, 21861, 24984, 26712, 29148, 36782, 38864, 43722, 49968, 53424, 55173, 58296, 73564, 87444, 110346, 116592, 128737, 147128, 165519, 174888, 220692, 257474, 294256, 331038, 349776, 386211, 441384, 514948, 662076, 772422, 882768, 1029896, 1158633, 1324152, 1544844, 2059792, 2317266, 2648304, 3089688, 4634532, 6179376, 9269064, 18538128]

約数ペア:

[(1, 18538128), (2, 9269064), (3, 6179376), (4, 4634532), (6, 3089688), (7, 2648304), (8, 2317266), (9, 2059792), (12, 1544844), (14, 1324152), (16, 1158633), (18, 1029896), (21, 882768), (24, 772422), (28, 662076), (36, 514948), (42, 441384), (48, 386211), (53, 349776), (56, 331038), (63, 294256), (72, 257474), (84, 220692), (106, 174888), (112, 165519), (126, 147128), (144, 128737), (159, 116592), (168, 110346), (212, 87444), (252, 73564), (318, 58296), (336, 55173), (347, 53424), (371, 49968), (424, 43722), (477, 38864), (504, 36782), (636, 29148), (694, 26712), (742, 24984), (848, 21861), (954, 19432), (1008, 18391), (1041, 17808), (1113, 16656), (1272, 14574), (1388, 13356), (1484, 12492), (1908, 9716), (2082, 8904), (2226, 8328), (2429, 7632), (2544, 7287), (2776, 6678), (2968, 6246), (3123, 5936), (3339, 5552), (3816, 4858), (4164, 4452)]