21490395

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{373}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 36191232

約数和(自身を除く): 14700837

約数列:

[1, 3, 5, 15, 23, 69, 115, 167, 345, 373, 501, 835, 1119, 1865, 2505, 3841, 5595, 8579, 11523, 19205, 25737, 42895, 57615, 62291, 128685, 186873, 311455, 934365, 1432693, 4298079, 7163465, 21490395]

約数ペア:

[(1, 21490395), (3, 7163465), (5, 4298079), (15, 1432693), (23, 934365), (69, 311455), (115, 186873), (167, 128685), (345, 62291), (373, 57615), (501, 42895), (835, 25737), (1119, 19205), (1865, 11523), (2505, 8579), (3841, 5595)]