221520299

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{587}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 309899520

約数和(自身を除く): 88379221

約数列:

[1, 7, 11, 13, 29, 77, 91, 143, 169, 203, 319, 377, 587, 1001, 1183, 1859, 2233, 2639, 4109, 4147, 4901, 6457, 7631, 13013, 17023, 29029, 34307, 45199, 53417, 53911, 83941, 99203, 119161, 187253, 221299, 377377, 587587, 694421, 1091233, 1310771, 1549093, 2434289, 2876887, 7638631, 17040023, 20138209, 31645757, 221520299]

約数ペア:

[(1, 221520299), (7, 31645757), (11, 20138209), (13, 17040023), (29, 7638631), (77, 2876887), (91, 2434289), (143, 1549093), (169, 1310771), (203, 1091233), (319, 694421), (377, 587587), (587, 377377), (1001, 221299), (1183, 187253), (1859, 119161), (2233, 99203), (2639, 83941), (4109, 53911), (4147, 53417), (4901, 45199), (6457, 34307), (7631, 29029), (13013, 17023)]