19624144

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13781}}^1$

素因数の和:13878

約数の個数: 20

約数和(自身を含む): 38451780

約数和(自身を除く): 18827636

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13781, 27562, 55124, 110248, 220496, 1226509, 2453018, 4906036, 9812072, 19624144]

約数ペア:

[(1, 19624144), (2, 9812072), (4, 4906036), (8, 2453018), (16, 1226509), (89, 220496), (178, 110248), (356, 55124), (712, 27562), (1424, 13781)]