221440079

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2647}}^1$

素因数の和:2727

約数の個数: 32

約数和(自身を含む): 289797120

約数和(自身を除く): 68357041

約数列:

[1, 7, 17, 19, 37, 119, 133, 259, 323, 629, 703, 2261, 2647, 4403, 4921, 11951, 18529, 44999, 50293, 83657, 97939, 314993, 352051, 685573, 854981, 1664963, 1860841, 5984867, 11654741, 13025887, 31634297, 221440079]

約数ペア:

[(1, 221440079), (7, 31634297), (17, 13025887), (19, 11654741), (37, 5984867), (119, 1860841), (133, 1664963), (259, 854981), (323, 685573), (629, 352051), (703, 314993), (2261, 97939), (2647, 83657), (4403, 50293), (4921, 44999), (11951, 18529)]