20976735

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1109}}^1$

素因数の和:1227

約数の個数: 32

約数和(自身を含む): 36550080

約数和(自身を除く): 15573345

約数列:

[1, 3, 5, 13, 15, 39, 65, 97, 195, 291, 485, 1109, 1261, 1455, 3327, 3783, 5545, 6305, 14417, 16635, 18915, 43251, 72085, 107573, 216255, 322719, 537865, 1398449, 1613595, 4195347, 6992245, 20976735]

約数ペア:

[(1, 20976735), (3, 6992245), (5, 4195347), (13, 1613595), (15, 1398449), (39, 537865), (65, 322719), (97, 216255), (195, 107573), (291, 72085), (485, 43251), (1109, 18915), (1261, 16635), (1455, 14417), (3327, 6305), (3783, 5545)]