19689345

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{863}}^1$

素因数の和:903

約数の個数: 48

約数和(自身を含む): 37946880

約数和(自身を除く): 18257535

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 169, 195, 351, 507, 585, 845, 863, 1521, 1755, 2535, 2589, 4315, 4563, 7605, 7767, 11219, 12945, 22815, 23301, 33657, 38835, 56095, 100971, 116505, 145847, 168285, 302913, 437541, 504855, 729235, 1312623, 1514565, 2187705, 3937869, 6563115, 19689345]

約数ペア:

[(1, 19689345), (3, 6563115), (5, 3937869), (9, 2187705), (13, 1514565), (15, 1312623), (27, 729235), (39, 504855), (45, 437541), (65, 302913), (117, 168285), (135, 145847), (169, 116505), (195, 100971), (351, 56095), (507, 38835), (585, 33657), (845, 23301), (863, 22815), (1521, 12945), (1755, 11219), (2535, 7767), (2589, 7605), (4315, 4563)]