19553611

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:283

約数の個数: 32

約数和(自身を含む): 25998336

約数和(自身を除く): 6444725

約数列:

[1, 7, 11, 23, 61, 77, 161, 181, 253, 427, 671, 1267, 1403, 1771, 1991, 4163, 4697, 9821, 11041, 13937, 15433, 29141, 45793, 77287, 108031, 121451, 253943, 320551, 850157, 1777601, 2793373, 19553611]

約数ペア:

[(1, 19553611), (7, 2793373), (11, 1777601), (23, 850157), (61, 320551), (77, 253943), (161, 121451), (181, 108031), (253, 77287), (427, 45793), (671, 29141), (1267, 15433), (1403, 13937), (1771, 11041), (1991, 9821), (4163, 4697)]