21996280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23909}}^1$

素因数の和:23943

約数の個数: 32

約数和(自身を含む): 51645600

約数和(自身を除く): 29649320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23909, 47818, 95636, 119545, 191272, 239090, 478180, 549907, 956360, 1099814, 2199628, 2749535, 4399256, 5499070, 10998140, 21996280]

約数ペア:

[(1, 21996280), (2, 10998140), (4, 5499070), (5, 4399256), (8, 2749535), (10, 2199628), (20, 1099814), (23, 956360), (40, 549907), (46, 478180), (92, 239090), (115, 191272), (184, 119545), (230, 95636), (460, 47818), (920, 23909)]