21138064

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12347}}^1$

素因数の和:12462

約数の個数: 20

約数和(自身を含む): 41341104

約数和(自身を除く): 20203040

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12347, 24694, 49388, 98776, 197552, 1321129, 2642258, 5284516, 10569032, 21138064]

約数ペア:

[(1, 21138064), (2, 10569032), (4, 5284516), (8, 2642258), (16, 1321129), (107, 197552), (214, 98776), (428, 49388), (856, 24694), (1712, 12347)]