21645616

素因数分解:

$2^4\times {\mathrm{601}}^1\times {\mathrm{2251}}^1$

素因数の和:2860

約数の個数: 20

約数和(自身を含む): 42026824

約数和(自身を除く): 20381208

約数列:

[1, 2, 4, 8, 16, 601, 1202, 2251, 2404, 4502, 4808, 9004, 9616, 18008, 36016, 1352851, 2705702, 5411404, 10822808, 21645616]

約数ペア:

[(1, 21645616), (2, 10822808), (4, 5411404), (8, 2705702), (16, 1352851), (601, 36016), (1202, 18008), (2251, 9616), (2404, 9004), (4502, 4808)]