19005567

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 32186880

約数和(自身を除く): 13181313

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 109, 133, 161, 327, 361, 399, 437, 483, 763, 1083, 1311, 2071, 2289, 2507, 2527, 3059, 6213, 7521, 7581, 8303, 9177, 14497, 17549, 24909, 39349, 43491, 47633, 52647, 58121, 118047, 142899, 174363, 275443, 333431, 826329, 905027, 1000293, 2715081, 6335189, 19005567]

約数ペア:

[(1, 19005567), (3, 6335189), (7, 2715081), (19, 1000293), (21, 905027), (23, 826329), (57, 333431), (69, 275443), (109, 174363), (133, 142899), (161, 118047), (327, 58121), (361, 52647), (399, 47633), (437, 43491), (483, 39349), (763, 24909), (1083, 17549), (1311, 14497), (2071, 9177), (2289, 8303), (2507, 7581), (2527, 7521), (3059, 6213)]