19383153

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 28250112

約数和(自身を除く): 8866959

約数列:

[1, 3, 31, 37, 43, 93, 111, 129, 131, 393, 1147, 1333, 1591, 3441, 3999, 4061, 4773, 4847, 5633, 12183, 14541, 16899, 49321, 147963, 150257, 174623, 208421, 450771, 523869, 625263, 6461051, 19383153]

約数ペア:

[(1, 19383153), (3, 6461051), (31, 625263), (37, 523869), (43, 450771), (93, 208421), (111, 174623), (129, 150257), (131, 147963), (393, 49321), (1147, 16899), (1333, 14541), (1591, 12183), (3441, 5633), (3999, 4847), (4061, 4773)]