21250296

素因数分解:

$2^3\times 3^3\times {\mathrm{131}}^1\times {\mathrm{751}}^1$

素因数の和:897

約数の個数: 64

約数和(自身を含む): 59558400

約数和(自身を除く): 38308104

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 131, 216, 262, 393, 524, 751, 786, 1048, 1179, 1502, 1572, 2253, 2358, 3004, 3144, 3537, 4506, 4716, 6008, 6759, 7074, 9012, 9432, 13518, 14148, 18024, 20277, 27036, 28296, 40554, 54072, 81108, 98381, 162216, 196762, 295143, 393524, 590286, 787048, 885429, 1180572, 1770858, 2361144, 2656287, 3541716, 5312574, 7083432, 10625148, 21250296]

約数ペア:

[(1, 21250296), (2, 10625148), (3, 7083432), (4, 5312574), (6, 3541716), (8, 2656287), (9, 2361144), (12, 1770858), (18, 1180572), (24, 885429), (27, 787048), (36, 590286), (54, 393524), (72, 295143), (108, 196762), (131, 162216), (216, 98381), (262, 81108), (393, 54072), (524, 40554), (751, 28296), (786, 27036), (1048, 20277), (1179, 18024), (1502, 14148), (1572, 13518), (2253, 9432), (2358, 9012), (3004, 7074), (3144, 6759), (3537, 6008), (4506, 4716)]