19971765

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4483}}^1$

素因数の和:4511

約数の個数: 40

約数和(自身を含む): 39064608

約数和(自身を除く): 19092843

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4455, 4483, 13449, 22415, 40347, 49313, 67245, 121041, 147939, 201735, 246565, 363123, 443817, 605205, 739695, 1331451, 1815615, 2219085, 3994353, 6657255, 19971765]

約数ペア:

[(1, 19971765), (3, 6657255), (5, 3994353), (9, 2219085), (11, 1815615), (15, 1331451), (27, 739695), (33, 605205), (45, 443817), (55, 363123), (81, 246565), (99, 201735), (135, 147939), (165, 121041), (297, 67245), (405, 49313), (495, 40347), (891, 22415), (1485, 13449), (4455, 4483)]