28011529

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{953}}^1$

素因数の和:1009

約数の個数: 32

約数和(自身を含む): 38465280

約数和(自身を除く): 10453751

約数列:

[1, 7, 13, 17, 19, 91, 119, 133, 221, 247, 323, 953, 1547, 1729, 2261, 4199, 6671, 12389, 16201, 18107, 29393, 86723, 113407, 126749, 210613, 235391, 307819, 1474291, 1647737, 2154733, 4001647, 28011529]

約数ペア:

[(1, 28011529), (7, 4001647), (13, 2154733), (17, 1647737), (19, 1474291), (91, 307819), (119, 235391), (133, 210613), (221, 126749), (247, 113407), (323, 86723), (953, 29393), (1547, 18107), (1729, 16201), (2261, 12389), (4199, 6671)]