20491128

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{373}}^1$

素因数の和:501

約数の個数: 96

約数和(自身を含む): 64178400

約数和(自身を除く): 43687272

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 109, 126, 168, 218, 252, 327, 373, 436, 504, 654, 746, 763, 872, 981, 1119, 1308, 1492, 1526, 1962, 2238, 2289, 2611, 2616, 2984, 3052, 3357, 3924, 4476, 4578, 5222, 6104, 6714, 6867, 7833, 7848, 8952, 9156, 10444, 13428, 13734, 15666, 18312, 20888, 23499, 26856, 27468, 31332, 40657, 46998, 54936, 62664, 81314, 93996, 121971, 162628, 187992, 243942, 284599, 325256, 365913, 487884, 569198, 731826, 853797, 975768, 1138396, 1463652, 1707594, 2276792, 2561391, 2927304, 3415188, 5122782, 6830376, 10245564, 20491128]

約数ペア:

[(1, 20491128), (2, 10245564), (3, 6830376), (4, 5122782), (6, 3415188), (7, 2927304), (8, 2561391), (9, 2276792), (12, 1707594), (14, 1463652), (18, 1138396), (21, 975768), (24, 853797), (28, 731826), (36, 569198), (42, 487884), (56, 365913), (63, 325256), (72, 284599), (84, 243942), (109, 187992), (126, 162628), (168, 121971), (218, 93996), (252, 81314), (327, 62664), (373, 54936), (436, 46998), (504, 40657), (654, 31332), (746, 27468), (763, 26856), (872, 23499), (981, 20888), (1119, 18312), (1308, 15666), (1492, 13734), (1526, 13428), (1962, 10444), (2238, 9156), (2289, 8952), (2611, 7848), (2616, 7833), (2984, 6867), (3052, 6714), (3357, 6104), (3924, 5222), (4476, 4578)]