20748438

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^2\times {\mathrm{2179}}^1$

素因数の和:2233

約数の個数: 36

約数和(自身を含む): 47016060

約数和(自身を除く): 26267622

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 529, 1058, 1587, 2179, 3174, 4358, 4761, 6537, 9522, 13074, 19611, 39222, 50117, 100234, 150351, 300702, 451053, 902106, 1152691, 2305382, 3458073, 6916146, 10374219, 20748438]

約数ペア:

[(1, 20748438), (2, 10374219), (3, 6916146), (6, 3458073), (9, 2305382), (18, 1152691), (23, 902106), (46, 451053), (69, 300702), (138, 150351), (207, 100234), (414, 50117), (529, 39222), (1058, 19611), (1587, 13074), (2179, 9522), (3174, 6537), (4358, 4761)]