212919903

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 362142976

約数和(自身を除く): 149223073

約数列:

[1, 3, 7, 9, 21, 63, 67, 73, 201, 219, 469, 511, 603, 657, 691, 1407, 1533, 2073, 4221, 4599, 4837, 4891, 6219, 14511, 14673, 34237, 43533, 44019, 46297, 50443, 102711, 138891, 151329, 308133, 324079, 353101, 416673, 453987, 972237, 1059303, 2916711, 3177909, 3379681, 10139043, 23657767, 30417129, 70973301, 212919903]

約数ペア:

[(1, 212919903), (3, 70973301), (7, 30417129), (9, 23657767), (21, 10139043), (63, 3379681), (67, 3177909), (73, 2916711), (201, 1059303), (219, 972237), (469, 453987), (511, 416673), (603, 353101), (657, 324079), (691, 308133), (1407, 151329), (1533, 138891), (2073, 102711), (4221, 50443), (4599, 46297), (4837, 44019), (4891, 43533), (6219, 34237), (14511, 14673)]