21596260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{22037}}^1$

素因数の和:22060

約数の個数: 36

約数和(自身を含む): 52758972

約数和(自身を除く): 31162712

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 22037, 44074, 88148, 110185, 154259, 220370, 308518, 440740, 617036, 771295, 1079813, 1542590, 2159626, 3085180, 4319252, 5399065, 10798130, 21596260]

約数ペア:

[(1, 21596260), (2, 10798130), (4, 5399065), (5, 4319252), (7, 3085180), (10, 2159626), (14, 1542590), (20, 1079813), (28, 771295), (35, 617036), (49, 440740), (70, 308518), (98, 220370), (140, 154259), (196, 110185), (245, 88148), (490, 44074), (980, 22037)]