20844765

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15973}}^1$

素因数の和:16013

約数の個数: 24

約数和(自身を含む): 37379160

約数和(自身を除く): 16534395

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 15973, 47919, 79865, 143757, 239595, 463217, 718785, 1389651, 2316085, 4168953, 6948255, 20844765]

約数ペア:

[(1, 20844765), (3, 6948255), (5, 4168953), (9, 2316085), (15, 1389651), (29, 718785), (45, 463217), (87, 239595), (145, 143757), (261, 79865), (435, 47919), (1305, 15973)]