405478107

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{18671}}^1$

素因数の和:18823

約数の個数: 24

約数和(自身を含む): 621404160

約数和(自身を除く): 215926053

約数列:

[1, 3, 9, 19, 57, 127, 171, 381, 1143, 2413, 7239, 18671, 21717, 56013, 168039, 354749, 1064247, 2371217, 3192741, 7113651, 21340953, 45053123, 135159369, 405478107]

約数ペア:

[(1, 405478107), (3, 135159369), (9, 45053123), (19, 21340953), (57, 7113651), (127, 3192741), (171, 2371217), (381, 1064247), (1143, 354749), (2413, 168039), (7239, 56013), (18671, 21717)]