21320650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{32801}}^1$

素因数の和:32826

約数の個数: 24

約数和(自身を含む): 42708204

約数和(自身を除く): 21387554

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 32801, 65602, 164005, 328010, 426413, 820025, 852826, 1640050, 2132065, 4264130, 10660325, 21320650]

約数ペア:

[(1, 21320650), (2, 10660325), (5, 4264130), (10, 2132065), (13, 1640050), (25, 852826), (26, 820025), (50, 426413), (65, 328010), (130, 164005), (325, 65602), (650, 32801)]