20763135

素因数分解:

$3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{743}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 38997504

約数和(自身を除く): 18234369

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 243, 345, 405, 621, 743, 1035, 1215, 1863, 2229, 3105, 3715, 5589, 6687, 9315, 11145, 17089, 20061, 27945, 33435, 51267, 60183, 85445, 100305, 153801, 180549, 256335, 300915, 461403, 769005, 902745, 1384209, 2307015, 4152627, 6921045, 20763135]

約数ペア:

[(1, 20763135), (3, 6921045), (5, 4152627), (9, 2307015), (15, 1384209), (23, 902745), (27, 769005), (45, 461403), (69, 300915), (81, 256335), (115, 180549), (135, 153801), (207, 100305), (243, 85445), (345, 60183), (405, 51267), (621, 33435), (743, 27945), (1035, 20061), (1215, 17089), (1863, 11145), (2229, 9315), (3105, 6687), (3715, 5589)]