21578914

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{7103}}^1$

素因数の和:7150

約数の個数: 24

約数和(自身を含む): 38873088

約数和(自身を除く): 17294174

約数列:

[1, 2, 7, 14, 31, 49, 62, 98, 217, 434, 1519, 3038, 7103, 14206, 49721, 99442, 220193, 348047, 440386, 696094, 1541351, 3082702, 10789457, 21578914]

約数ペア:

[(1, 21578914), (2, 10789457), (7, 3082702), (14, 1541351), (31, 696094), (49, 440386), (62, 348047), (98, 220193), (217, 99442), (434, 49721), (1519, 14206), (3038, 7103)]