21016852

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1721}}^1$

素因数の和:1839

約数の個数: 24

約数和(自身を含む): 38187072

約数和(自身を除く): 17170220

約数列:

[1, 2, 4, 43, 71, 86, 142, 172, 284, 1721, 3053, 3442, 6106, 6884, 12212, 74003, 122191, 148006, 244382, 296012, 488764, 5254213, 10508426, 21016852]

約数ペア:

[(1, 21016852), (2, 10508426), (4, 5254213), (43, 488764), (71, 296012), (86, 244382), (142, 148006), (172, 122191), (284, 74003), (1721, 12212), (3053, 6884), (3442, 6106)]