71310813

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{503}}^1$

素因数の和:713

約数の個数: 32

約数和(自身を含む): 112121856

約数和(自身を除く): 40811043

約数列:

[1, 3, 7, 21, 43, 129, 157, 301, 471, 503, 903, 1099, 1509, 3297, 3521, 6751, 10563, 20253, 21629, 47257, 64887, 78971, 141771, 151403, 236913, 454209, 552797, 1658391, 3395753, 10187259, 23770271, 71310813]

約数ペア:

[(1, 71310813), (3, 23770271), (7, 10187259), (21, 3395753), (43, 1658391), (129, 552797), (157, 454209), (301, 236913), (471, 151403), (503, 141771), (903, 78971), (1099, 64887), (1509, 47257), (3297, 21629), (3521, 20253), (6751, 10563)]