21006304

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{719}}^1$

素因数の和:823

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 24716576

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 83, 88, 166, 176, 332, 352, 664, 719, 913, 1328, 1438, 1826, 2656, 2876, 3652, 5752, 7304, 7909, 11504, 14608, 15818, 23008, 29216, 31636, 59677, 63272, 119354, 126544, 238708, 253088, 477416, 656447, 954832, 1312894, 1909664, 2625788, 5251576, 10503152, 21006304]

約数ペア:

[(1, 21006304), (2, 10503152), (4, 5251576), (8, 2625788), (11, 1909664), (16, 1312894), (22, 954832), (32, 656447), (44, 477416), (83, 253088), (88, 238708), (166, 126544), (176, 119354), (332, 63272), (352, 59677), (664, 31636), (719, 29216), (913, 23008), (1328, 15818), (1438, 14608), (1826, 11504), (2656, 7909), (2876, 7304), (3652, 5752)]