1921000424

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1\times {\mathrm{1217}}^1$

素因数の和:1698

約数の個数: 64

約数和(自身を含む): 4188360960

約数和(自身を除く): 2267360536

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 397, 497, 568, 794, 994, 1217, 1588, 1988, 2434, 2779, 3176, 3976, 4868, 5558, 8519, 9736, 11116, 17038, 22232, 28187, 34076, 56374, 68152, 86407, 112748, 172814, 197309, 225496, 345628, 394618, 483149, 604849, 691256, 789236, 966298, 1209698, 1578472, 1932596, 2419396, 3382043, 3865192, 4838792, 6764086, 13528172, 27056344, 34303579, 68607158, 137214316, 240125053, 274428632, 480250106, 960500212, 1921000424]

約数ペア:

[(1, 1921000424), (2, 960500212), (4, 480250106), (7, 274428632), (8, 240125053), (14, 137214316), (28, 68607158), (56, 34303579), (71, 27056344), (142, 13528172), (284, 6764086), (397, 4838792), (497, 3865192), (568, 3382043), (794, 2419396), (994, 1932596), (1217, 1578472), (1588, 1209698), (1988, 966298), (2434, 789236), (2779, 691256), (3176, 604849), (3976, 483149), (4868, 394618), (5558, 345628), (8519, 225496), (9736, 197309), (11116, 172814), (17038, 112748), (22232, 86407), (28187, 68152), (34076, 56374)]