21159904

素因数分解:

$2^5\times {\mathrm{101}}^1\times {\mathrm{6547}}^1$

素因数の和:6658

約数の個数: 24

約数和(自身を含む): 42077448

約数和(自身を除く): 20917544

約数列:

[1, 2, 4, 8, 16, 32, 101, 202, 404, 808, 1616, 3232, 6547, 13094, 26188, 52376, 104752, 209504, 661247, 1322494, 2644988, 5289976, 10579952, 21159904]

約数ペア:

[(1, 21159904), (2, 10579952), (4, 5289976), (8, 2644988), (16, 1322494), (32, 661247), (101, 209504), (202, 104752), (404, 52376), (808, 26188), (1616, 13094), (3232, 6547)]