20986192

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16603}}^1$

素因数の和:16690

約数の個数: 20

約数和(自身を含む): 41177920

約数和(自身を除く): 20191728

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16603, 33206, 66412, 132824, 265648, 1311637, 2623274, 5246548, 10493096, 20986192]

約数ペア:

[(1, 20986192), (2, 10493096), (4, 5246548), (8, 2623274), (16, 1311637), (79, 265648), (158, 132824), (316, 66412), (632, 33206), (1264, 16603)]