28911285

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{677}}^1$

素因数の和:774

約数の個数: 48

約数和(自身を含む): 54787824

約数和(自身を除く): 25876539

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 73, 117, 195, 219, 365, 585, 657, 677, 949, 1095, 2031, 2847, 3285, 3385, 4745, 6093, 8541, 8801, 10155, 14235, 26403, 30465, 42705, 44005, 49421, 79209, 132015, 148263, 247105, 396045, 444789, 642473, 741315, 1927419, 2223945, 3212365, 5782257, 9637095, 28911285]

約数ペア:

[(1, 28911285), (3, 9637095), (5, 5782257), (9, 3212365), (13, 2223945), (15, 1927419), (39, 741315), (45, 642473), (65, 444789), (73, 396045), (117, 247105), (195, 148263), (219, 132015), (365, 79209), (585, 49421), (657, 44005), (677, 42705), (949, 30465), (1095, 26403), (2031, 14235), (2847, 10155), (3285, 8801), (3385, 8541), (4745, 6093)]