19865808

素因数分解:

$2^4\times 3^2\times {\mathrm{137957}}^1$

素因数の和:137971

約数の個数: 30

約数和(自身を含む): 55597074

約数和(自身を除く): 35731266

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 137957, 275914, 413871, 551828, 827742, 1103656, 1241613, 1655484, 2207312, 2483226, 3310968, 4966452, 6621936, 9932904, 19865808]

約数ペア:

[(1, 19865808), (2, 9932904), (3, 6621936), (4, 4966452), (6, 3310968), (8, 2483226), (9, 2207312), (12, 1655484), (16, 1241613), (18, 1103656), (24, 827742), (36, 551828), (48, 413871), (72, 275914), (144, 137957)]