256331229

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{15629}}^1$

素因数の和:15721

約数の個数: 32

約数和(自身を含む): 432138240

約数和(自身を除く): 175807011

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 213, 231, 497, 781, 1491, 2343, 5467, 15629, 16401, 46887, 109403, 171919, 328209, 515757, 1109659, 1203433, 3328977, 3610299, 7767613, 12206249, 23302839, 36618747, 85443743, 256331229]

約数ペア:

[(1, 256331229), (3, 85443743), (7, 36618747), (11, 23302839), (21, 12206249), (33, 7767613), (71, 3610299), (77, 3328977), (213, 1203433), (231, 1109659), (497, 515757), (781, 328209), (1491, 171919), (2343, 109403), (5467, 46887), (15629, 16401)]