18744165

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1993}}^1$

素因数の和:2034

約数の個数: 48

約数和(自身を含む): 37327680

約数和(自身を除く): 18583515

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 209, 285, 495, 627, 855, 1045, 1881, 1993, 3135, 5979, 9405, 9965, 17937, 21923, 29895, 37867, 65769, 89685, 109615, 113601, 189335, 197307, 328845, 340803, 416537, 568005, 986535, 1249611, 1704015, 2082685, 3748833, 6248055, 18744165]

約数ペア:

[(1, 18744165), (3, 6248055), (5, 3748833), (9, 2082685), (11, 1704015), (15, 1249611), (19, 986535), (33, 568005), (45, 416537), (55, 340803), (57, 328845), (95, 197307), (99, 189335), (165, 113601), (171, 109615), (209, 89685), (285, 65769), (495, 37867), (627, 29895), (855, 21923), (1045, 17937), (1881, 9965), (1993, 9405), (3135, 5979)]