2008990529

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1\times {\mathrm{1279}}^1$

素因数の和:1761

約数の個数: 32

約数和(自身を含む): 2540912640

約数和(自身を除く): 531922111

約数列:

[1, 7, 13, 41, 91, 287, 421, 533, 1279, 2947, 3731, 5473, 8953, 16627, 17261, 38311, 52439, 116389, 120827, 224393, 367073, 538459, 681707, 1570751, 3769213, 4771949, 6999967, 22076819, 48999769, 154537733, 286998647, 2008990529]

約数ペア:

[(1, 2008990529), (7, 286998647), (13, 154537733), (41, 48999769), (91, 22076819), (287, 6999967), (421, 4771949), (533, 3769213), (1279, 1570751), (2947, 681707), (3731, 538459), (5473, 367073), (8953, 224393), (16627, 120827), (17261, 116389), (38311, 52439)]