20458965

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{193}}^1$

素因数の和:429

約数の個数: 32

約数和(自身を含む): 33970176

約数和(自身を除く): 13511211

約数列:

[1, 3, 5, 15, 37, 111, 185, 191, 193, 555, 573, 579, 955, 965, 2865, 2895, 7067, 7141, 21201, 21423, 35335, 35705, 36863, 106005, 107115, 110589, 184315, 552945, 1363931, 4091793, 6819655, 20458965]

約数ペア:

[(1, 20458965), (3, 6819655), (5, 4091793), (15, 1363931), (37, 552945), (111, 184315), (185, 110589), (191, 107115), (193, 106005), (555, 36863), (573, 35705), (579, 35335), (955, 21423), (965, 21201), (2865, 7141), (2895, 7067)]