20671868

素因数分解:

$2^2\times 7^1\times {\mathrm{673}}^1\times {\mathrm{1097}}^1$

素因数の和:1781

約数の個数: 24

約数和(自身を含む): 41442912

約数和(自身を除く): 20771044

約数列:

[1, 2, 4, 7, 14, 28, 673, 1097, 1346, 2194, 2692, 4388, 4711, 7679, 9422, 15358, 18844, 30716, 738281, 1476562, 2953124, 5167967, 10335934, 20671868]

約数ペア:

[(1, 20671868), (2, 10335934), (4, 5167967), (7, 2953124), (14, 1476562), (28, 738281), (673, 30716), (1097, 18844), (1346, 15358), (2194, 9422), (2692, 7679), (4388, 4711)]