21916245

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{673}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 38045952

約数和(自身を除く): 16129707

約数列:

[1, 3, 5, 13, 15, 39, 65, 167, 195, 501, 673, 835, 2019, 2171, 2505, 3365, 6513, 8749, 10095, 10855, 26247, 32565, 43745, 112391, 131235, 337173, 561955, 1461083, 1685865, 4383249, 7305415, 21916245]

約数ペア:

[(1, 21916245), (3, 7305415), (5, 4383249), (13, 1685865), (15, 1461083), (39, 561955), (65, 337173), (167, 131235), (195, 112391), (501, 43745), (673, 32565), (835, 26247), (2019, 10855), (2171, 10095), (2505, 8749), (3365, 6513)]