20747538

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{164663}}^1$

素因数の和:164678

約数の個数: 24

約数和(自身を含む): 51375168

約数和(自身を除く): 30627630

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 164663, 329326, 493989, 987978, 1152641, 1481967, 2305282, 2963934, 3457923, 6915846, 10373769, 20747538]

約数ペア:

[(1, 20747538), (2, 10373769), (3, 6915846), (6, 3457923), (7, 2963934), (9, 2305282), (14, 1481967), (18, 1152641), (21, 987978), (42, 493989), (63, 329326), (126, 164663)]