21416725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1657}}^1$

素因数の和:1725

約数の個数: 24

約数和(自身を含む): 29605248

約数和(自身を除く): 8188523

約数列:

[1, 5, 11, 25, 47, 55, 235, 275, 517, 1175, 1657, 2585, 8285, 12925, 18227, 41425, 77879, 91135, 389395, 455675, 856669, 1946975, 4283345, 21416725]

約数ペア:

[(1, 21416725), (5, 4283345), (11, 1946975), (25, 856669), (47, 455675), (55, 389395), (235, 91135), (275, 77879), (517, 41425), (1175, 18227), (1657, 12925), (2585, 8285)]