20291523

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{503}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 33094656

約数和(自身を除く): 12803133

約数列:

[1, 3, 7, 17, 21, 51, 113, 119, 339, 357, 503, 791, 1509, 1921, 2373, 3521, 5763, 8551, 10563, 13447, 25653, 40341, 56839, 59857, 170517, 179571, 397873, 966263, 1193619, 2898789, 6763841, 20291523]

約数ペア:

[(1, 20291523), (3, 6763841), (7, 2898789), (17, 1193619), (21, 966263), (51, 397873), (113, 179571), (119, 170517), (339, 59857), (357, 56839), (503, 40341), (791, 25653), (1509, 13447), (1921, 10563), (2373, 8551), (3521, 5763)]