21371806

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{1303}}^1$

素因数の和:1503

約数の個数: 16

約数和(自身を含む): 32860800

約数和(自身を除く): 11488994

約数列:

[1, 2, 59, 118, 139, 278, 1303, 2606, 8201, 16402, 76877, 153754, 181117, 362234, 10685903, 21371806]

約数ペア:

[(1, 21371806), (2, 10685903), (59, 362234), (118, 181117), (139, 153754), (278, 76877), (1303, 16402), (2606, 8201)]