18974895

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 12543825

約数列:

[1, 3, 5, 15, 37, 111, 179, 185, 191, 537, 555, 573, 895, 955, 2685, 2865, 6623, 7067, 19869, 21201, 33115, 34189, 35335, 99345, 102567, 106005, 170945, 512835, 1264993, 3794979, 6324965, 18974895]

約数ペア:

[(1, 18974895), (3, 6324965), (5, 3794979), (15, 1264993), (37, 512835), (111, 170945), (179, 106005), (185, 102567), (191, 99345), (537, 35335), (555, 34189), (573, 33115), (895, 21201), (955, 19869), (2685, 7067), (2865, 6623)]