20452905

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4591}}^1$

素因数の和:4619

約数の個数: 40

約数和(自身を含む): 40005504

約数和(自身を除く): 19552599

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4455, 4591, 13773, 22955, 41319, 50501, 68865, 123957, 151503, 206595, 252505, 371871, 454509, 619785, 757515, 1363527, 1859355, 2272545, 4090581, 6817635, 20452905]

約数ペア:

[(1, 20452905), (3, 6817635), (5, 4090581), (9, 2272545), (11, 1859355), (15, 1363527), (27, 757515), (33, 619785), (45, 454509), (55, 371871), (81, 252505), (99, 206595), (135, 151503), (165, 123957), (297, 68865), (405, 50501), (495, 41319), (891, 22955), (1485, 13773), (4455, 4591)]