20815354

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1$

素因数の和:610

約数の個数: 32

約数和(自身を含む): 37103616

約数和(自身を除く): 16288262

約数列:

[1, 2, 7, 14, 43, 71, 86, 142, 301, 487, 497, 602, 974, 994, 3053, 3409, 6106, 6818, 20941, 21371, 34577, 41882, 42742, 69154, 146587, 242039, 293174, 484078, 1486811, 2973622, 10407677, 20815354]

約数ペア:

[(1, 20815354), (2, 10407677), (7, 2973622), (14, 1486811), (43, 484078), (71, 293174), (86, 242039), (142, 146587), (301, 69154), (487, 42742), (497, 41882), (602, 34577), (974, 21371), (994, 20941), (3053, 6818), (3409, 6106)]