20784222

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{8951}}^1$

素因数の和:9005

約数の個数: 32

約数和(自身を含む): 47266560

約数和(自身を除く): 26482338

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 86, 129, 258, 387, 774, 1161, 2322, 8951, 17902, 26853, 53706, 80559, 161118, 241677, 384893, 483354, 769786, 1154679, 2309358, 3464037, 6928074, 10392111, 20784222]

約数ペア:

[(1, 20784222), (2, 10392111), (3, 6928074), (6, 3464037), (9, 2309358), (18, 1154679), (27, 769786), (43, 483354), (54, 384893), (86, 241677), (129, 161118), (258, 80559), (387, 53706), (774, 26853), (1161, 17902), (2322, 8951)]