21003771

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1\times {\mathrm{503}}^1$

素因数の和:986

約数の個数: 16

約数和(自身を含む): 29030400

約数和(自身を除く): 8026629

約数列:

[1, 3, 31, 93, 449, 503, 1347, 1509, 13919, 15593, 41757, 46779, 225847, 677541, 7001257, 21003771]

約数ペア:

[(1, 21003771), (3, 7001257), (31, 677541), (93, 225847), (449, 46779), (503, 41757), (1347, 15593), (1509, 13919)]