217468839

素因数分解:

$3^1\times 7^1\times {\mathrm{113}}^2\times {\mathrm{811}}^1$

素因数の和:1047

約数の個数: 24

約数和(自身を含む): 334751872

約数和(自身を除く): 117283033

約数列:

[1, 3, 7, 21, 113, 339, 791, 811, 2373, 2433, 5677, 12769, 17031, 38307, 89383, 91643, 268149, 274929, 641501, 1924503, 10355659, 31066977, 72489613, 217468839]

約数ペア:

[(1, 217468839), (3, 72489613), (7, 31066977), (21, 10355659), (113, 1924503), (339, 641501), (791, 274929), (811, 268149), (2373, 91643), (2433, 89383), (5677, 38307), (12769, 17031)]