21876393

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 37691136

約数和(自身を除く): 15814743

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 83, 147, 163, 231, 249, 489, 539, 581, 913, 1141, 1617, 1743, 1793, 2739, 3423, 4067, 5379, 6391, 7987, 12201, 12551, 13529, 19173, 23961, 37653, 40587, 44737, 87857, 94703, 134211, 148819, 263571, 284109, 446457, 662921, 1041733, 1988763, 3125199, 7292131, 21876393]

約数ペア:

[(1, 21876393), (3, 7292131), (7, 3125199), (11, 1988763), (21, 1041733), (33, 662921), (49, 446457), (77, 284109), (83, 263571), (147, 148819), (163, 134211), (231, 94703), (249, 87857), (489, 44737), (539, 40587), (581, 37653), (913, 23961), (1141, 19173), (1617, 13529), (1743, 12551), (1793, 12201), (2739, 7987), (3423, 6391), (4067, 5379)]