399007149

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 559063296

約数和(自身を除く): 160056147

約数列:

[1, 3, 37, 71, 111, 197, 213, 257, 591, 771, 2627, 7289, 7881, 9509, 13987, 18247, 21867, 28527, 41961, 50629, 54741, 151887, 517519, 675139, 1552557, 1873273, 2025417, 3594659, 5619819, 10783977, 133002383, 399007149]

約数ペア:

[(1, 399007149), (3, 133002383), (37, 10783977), (71, 5619819), (111, 3594659), (197, 2025417), (213, 1873273), (257, 1552557), (591, 675139), (771, 517519), (2627, 151887), (7289, 54741), (7881, 50629), (9509, 41961), (13987, 28527), (18247, 21867)]