21423465

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2957}}^1$

素因数の和:2998

約数の個数: 48

約数和(自身を含む): 44299008

約数和(自身を除く): 22875543

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 63, 69, 105, 115, 161, 207, 315, 345, 483, 805, 1035, 1449, 2415, 2957, 7245, 8871, 14785, 20699, 26613, 44355, 62097, 68011, 103495, 133065, 186291, 204033, 310485, 340055, 476077, 612099, 931455, 1020165, 1428231, 2380385, 3060495, 4284693, 7141155, 21423465]

約数ペア:

[(1, 21423465), (3, 7141155), (5, 4284693), (7, 3060495), (9, 2380385), (15, 1428231), (21, 1020165), (23, 931455), (35, 612099), (45, 476077), (63, 340055), (69, 310485), (105, 204033), (115, 186291), (161, 133065), (207, 103495), (315, 68011), (345, 62097), (483, 44355), (805, 26613), (1035, 20699), (1449, 14785), (2415, 8871), (2957, 7245)]