217718921

素因数分解:

$7^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{1193}}^1$

素因数の和:1289

約数の個数: 24

約数和(自身を含む): 266233344

約数和(自身を除く): 48514423

約数列:

[1, 7, 29, 31, 203, 217, 841, 899, 1193, 5887, 6293, 8351, 26071, 34597, 36983, 182497, 242179, 258881, 1003313, 1072507, 7023191, 7507549, 31102703, 217718921]

約数ペア:

[(1, 217718921), (7, 31102703), (29, 7507549), (31, 7023191), (203, 1072507), (217, 1003313), (841, 258881), (899, 242179), (1193, 182497), (5887, 36983), (6293, 34597), (8351, 26071)]