19295505

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 35433216

約数和(自身を除く): 16137711

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 103, 115, 181, 207, 309, 345, 515, 543, 905, 927, 1035, 1545, 1629, 2369, 2715, 4163, 4635, 7107, 8145, 11845, 12489, 18643, 20815, 21321, 35535, 37467, 55929, 62445, 93215, 106605, 167787, 187335, 279645, 428789, 838935, 1286367, 2143945, 3859101, 6431835, 19295505]

約数ペア:

[(1, 19295505), (3, 6431835), (5, 3859101), (9, 2143945), (15, 1286367), (23, 838935), (45, 428789), (69, 279645), (103, 187335), (115, 167787), (181, 106605), (207, 93215), (309, 62445), (345, 55929), (515, 37467), (543, 35535), (905, 21321), (927, 20815), (1035, 18643), (1545, 12489), (1629, 11845), (2369, 8145), (2715, 7107), (4163, 4635)]