20218299

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 29694720

約数和(自身を除く): 9476421

約数列:

[1, 3, 19, 43, 57, 73, 113, 129, 219, 339, 817, 1387, 2147, 2451, 3139, 4161, 4859, 6441, 8249, 9417, 14577, 24747, 59641, 92321, 156731, 178923, 276963, 354707, 470193, 1064121, 6739433, 20218299]

約数ペア:

[(1, 20218299), (3, 6739433), (19, 1064121), (43, 470193), (57, 354707), (73, 276963), (113, 178923), (129, 156731), (219, 92321), (339, 59641), (817, 24747), (1387, 14577), (2147, 9417), (2451, 8249), (3139, 6441), (4161, 4859)]