19516185

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{457}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 37010064

約数和(自身を除く): 17493879

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 73, 117, 195, 219, 365, 457, 585, 657, 949, 1095, 1371, 2285, 2847, 3285, 4113, 4745, 5941, 6855, 8541, 14235, 17823, 20565, 29705, 33361, 42705, 53469, 89115, 100083, 166805, 267345, 300249, 433693, 500415, 1301079, 1501245, 2168465, 3903237, 6505395, 19516185]

約数ペア:

[(1, 19516185), (3, 6505395), (5, 3903237), (9, 2168465), (13, 1501245), (15, 1301079), (39, 500415), (45, 433693), (65, 300249), (73, 267345), (117, 166805), (195, 100083), (219, 89115), (365, 53469), (457, 42705), (585, 33361), (657, 29705), (949, 20565), (1095, 17823), (1371, 14235), (2285, 8541), (2847, 6855), (3285, 5941), (4113, 4745)]