19917140

素因数分解:

$2^2\times 5^1\times {\mathrm{601}}^1\times {\mathrm{1657}}^1$

素因数の和:2267

約数の個数: 24

約数和(自身を含む): 41920872

約数和(自身を除く): 22003732

約数列:

[1, 2, 4, 5, 10, 20, 601, 1202, 1657, 2404, 3005, 3314, 6010, 6628, 8285, 12020, 16570, 33140, 995857, 1991714, 3983428, 4979285, 9958570, 19917140]

約数ペア:

[(1, 19917140), (2, 9958570), (4, 4979285), (5, 3983428), (10, 1991714), (20, 995857), (601, 33140), (1202, 16570), (1657, 12020), (2404, 8285), (3005, 6628), (3314, 6010)]