21283730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1621}}^1$

素因数の和:1742

約数の個数: 32

約数和(自身を含む): 41691888

約数和(自身を除く): 20408158

約数列:

[1, 2, 5, 10, 13, 26, 65, 101, 130, 202, 505, 1010, 1313, 1621, 2626, 3242, 6565, 8105, 13130, 16210, 21073, 42146, 105365, 163721, 210730, 327442, 818605, 1637210, 2128373, 4256746, 10641865, 21283730]

約数ペア:

[(1, 21283730), (2, 10641865), (5, 4256746), (10, 2128373), (13, 1637210), (26, 818605), (65, 327442), (101, 210730), (130, 163721), (202, 105365), (505, 42146), (1010, 21073), (1313, 16210), (1621, 13130), (2626, 8105), (3242, 6565)]