21606165

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{607}}^1$

素因数の和:738

約数の個数: 48

約数和(自身を含む): 43250688

約数和(自身を除く): 21644523

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 113, 315, 339, 565, 607, 791, 1017, 1695, 1821, 2373, 3035, 3955, 4249, 5085, 5463, 7119, 9105, 11865, 12747, 21245, 27315, 35595, 38241, 63735, 68591, 191205, 205773, 342955, 480137, 617319, 1028865, 1440411, 2400685, 3086595, 4321233, 7202055, 21606165]

約数ペア:

[(1, 21606165), (3, 7202055), (5, 4321233), (7, 3086595), (9, 2400685), (15, 1440411), (21, 1028865), (35, 617319), (45, 480137), (63, 342955), (105, 205773), (113, 191205), (315, 68591), (339, 63735), (565, 38241), (607, 35595), (791, 27315), (1017, 21245), (1695, 12747), (1821, 11865), (2373, 9105), (3035, 7119), (3955, 5463), (4249, 5085)]