20915595

素因数分解:

$3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6367}}^1$

素因数の和:6451

約数の個数: 24

約数和(自身を含む): 36756096

約数和(自身を除く): 15840501

約数列:

[1, 3, 5, 9, 15, 45, 73, 219, 365, 657, 1095, 3285, 6367, 19101, 31835, 57303, 95505, 286515, 464791, 1394373, 2323955, 4183119, 6971865, 20915595]

約数ペア:

[(1, 20915595), (3, 6971865), (5, 4183119), (9, 2323955), (15, 1394373), (45, 464791), (73, 286515), (219, 95505), (365, 57303), (657, 31835), (1095, 19101), (3285, 6367)]