19665855

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:102

約数の個数: 128

約数和(自身を含む): 43545600

約数和(自身を除く): 23879745

約数列:

[1, 3, 5, 9, 11, 15, 17, 19, 27, 33, 41, 45, 51, 55, 57, 85, 95, 99, 123, 135, 153, 165, 171, 187, 205, 209, 255, 285, 297, 323, 369, 451, 459, 495, 513, 561, 615, 627, 697, 765, 779, 855, 935, 969, 1045, 1107, 1353, 1485, 1615, 1683, 1845, 1881, 2091, 2255, 2295, 2337, 2565, 2805, 2907, 3135, 3485, 3553, 3895, 4059, 4845, 5049, 5535, 5643, 6273, 6765, 7011, 7667, 8415, 8569, 8721, 9405, 10455, 10659, 11685, 12177, 13243, 14535, 17765, 18819, 20295, 21033, 23001, 25245, 25707, 28215, 31365, 31977, 35055, 38335, 39729, 42845, 43605, 53295, 60885, 66215, 69003, 77121, 94095, 95931, 105165, 115005, 119187, 128535, 145673, 159885, 198645, 207009, 231363, 345015, 357561, 385605, 437019, 479655, 595935, 728365, 1035045, 1156815, 1311057, 1787805, 2185095, 3933171, 6555285, 19665855]

約数ペア:

[(1, 19665855), (3, 6555285), (5, 3933171), (9, 2185095), (11, 1787805), (15, 1311057), (17, 1156815), (19, 1035045), (27, 728365), (33, 595935), (41, 479655), (45, 437019), (51, 385605), (55, 357561), (57, 345015), (85, 231363), (95, 207009), (99, 198645), (123, 159885), (135, 145673), (153, 128535), (165, 119187), (171, 115005), (187, 105165), (205, 95931), (209, 94095), (255, 77121), (285, 69003), (297, 66215), (323, 60885), (369, 53295), (451, 43605), (459, 42845), (495, 39729), (513, 38335), (561, 35055), (615, 31977), (627, 31365), (697, 28215), (765, 25707), (779, 25245), (855, 23001), (935, 21033), (969, 20295), (1045, 18819), (1107, 17765), (1353, 14535), (1485, 13243), (1615, 12177), (1683, 11685), (1845, 10659), (1881, 10455), (2091, 9405), (2255, 8721), (2295, 8569), (2337, 8415), (2565, 7667), (2805, 7011), (2907, 6765), (3135, 6273), (3485, 5643), (3553, 5535), (3895, 5049), (4059, 4845)]