21131248

素因数分解:

$2^4\times {\mathrm{337}}^1\times {\mathrm{3919}}^1$

素因数の和:4264

約数の個数: 20

約数和(自身を含む): 41073760

約数和(自身を除く): 19942512

約数列:

[1, 2, 4, 8, 16, 337, 674, 1348, 2696, 3919, 5392, 7838, 15676, 31352, 62704, 1320703, 2641406, 5282812, 10565624, 21131248]

約数ペア:

[(1, 21131248), (2, 10565624), (4, 5282812), (8, 2641406), (16, 1320703), (337, 62704), (674, 31352), (1348, 15676), (2696, 7838), (3919, 5392)]