19502379

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 33080320

約数和(自身を除く): 13577941

約数列:

[1, 3, 9, 13, 19, 31, 39, 57, 93, 117, 171, 247, 279, 283, 403, 589, 741, 849, 1209, 1767, 2223, 2547, 3627, 3679, 5301, 5377, 7657, 8773, 11037, 16131, 22971, 26319, 33111, 48393, 68913, 69901, 78957, 114049, 166687, 209703, 342147, 500061, 629109, 1026441, 1500183, 2166931, 6500793, 19502379]

約数ペア:

[(1, 19502379), (3, 6500793), (9, 2166931), (13, 1500183), (19, 1026441), (31, 629109), (39, 500061), (57, 342147), (93, 209703), (117, 166687), (171, 114049), (247, 78957), (279, 69901), (283, 68913), (403, 48393), (589, 33111), (741, 26319), (849, 22971), (1209, 16131), (1767, 11037), (2223, 8773), (2547, 7657), (3627, 5377), (3679, 5301)]