201821389

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1373}}^1$

素因数の和:1497

約数の個数: 32

約数和(自身を含む): 265918464

約数和(自身を除く): 64097075

約数列:

[1, 7, 11, 23, 77, 83, 161, 253, 581, 913, 1373, 1771, 1909, 6391, 9611, 13363, 15103, 20999, 31579, 105721, 113959, 146993, 221053, 347369, 797713, 1253549, 2431583, 2621057, 8774843, 18347399, 28831627, 201821389]

約数ペア:

[(1, 201821389), (7, 28831627), (11, 18347399), (23, 8774843), (77, 2621057), (83, 2431583), (161, 1253549), (253, 797713), (581, 347369), (913, 221053), (1373, 146993), (1771, 113959), (1909, 105721), (6391, 31579), (9611, 20999), (13363, 15103)]