21466105

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 7426055

約数列:

[1, 5, 19, 31, 37, 95, 155, 185, 197, 589, 703, 985, 1147, 2945, 3515, 3743, 5735, 6107, 7289, 18715, 21793, 30535, 36445, 108965, 116033, 138491, 225959, 580165, 692455, 1129795, 4293221, 21466105]

約数ペア:

[(1, 21466105), (5, 4293221), (19, 1129795), (31, 692455), (37, 580165), (95, 225959), (155, 138491), (185, 116033), (197, 108965), (589, 36445), (703, 30535), (985, 21793), (1147, 18715), (2945, 7289), (3515, 6107), (3743, 5735)]