21076175

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 28002672

約数和(自身を除く): 6926497

約数列:

[1, 5, 17, 25, 85, 101, 425, 491, 505, 1717, 2455, 2525, 8347, 8585, 12275, 41735, 42925, 49591, 208675, 247955, 843047, 1239775, 4215235, 21076175]

約数ペア:

[(1, 21076175), (5, 4215235), (17, 1239775), (25, 843047), (85, 247955), (101, 208675), (425, 49591), (491, 42925), (505, 41735), (1717, 12275), (2455, 8585), (2525, 8347)]