19818703

素因数分解:

${\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{503}}^1$

素因数の和:606

約数の個数: 12

約数和(自身を含む): 21019824

約数和(自身を除く): 1201121

約数列:

[1, 31, 41, 503, 961, 1271, 15593, 20623, 39401, 483383, 639313, 19818703]

約数ペア:

[(1, 19818703), (31, 639313), (41, 483383), (503, 39401), (961, 20623), (1271, 15593)]