21362864

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16901}}^1$

素因数の和:16988

約数の個数: 20

約数和(自身を含む): 41916960

約数和(自身を除く): 20554096

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16901, 33802, 67604, 135208, 270416, 1335179, 2670358, 5340716, 10681432, 21362864]

約数ペア:

[(1, 21362864), (2, 10681432), (4, 5340716), (8, 2670358), (16, 1335179), (79, 270416), (158, 135208), (316, 67604), (632, 33802), (1264, 16901)]