21982365

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 40480128

約数和(自身を除く): 18497763

約数列:

[1, 3, 5, 9, 15, 23, 45, 67, 69, 115, 201, 207, 317, 335, 345, 603, 951, 1005, 1035, 1541, 1585, 2853, 3015, 4623, 4755, 7291, 7705, 13869, 14265, 21239, 21873, 23115, 36455, 63717, 65619, 69345, 106195, 109365, 191151, 318585, 328095, 488497, 955755, 1465491, 2442485, 4396473, 7327455, 21982365]

約数ペア:

[(1, 21982365), (3, 7327455), (5, 4396473), (9, 2442485), (15, 1465491), (23, 955755), (45, 488497), (67, 328095), (69, 318585), (115, 191151), (201, 109365), (207, 106195), (317, 69345), (335, 65619), (345, 63717), (603, 36455), (951, 23115), (1005, 21873), (1035, 21239), (1541, 14265), (1585, 13869), (2853, 7705), (3015, 7291), (4623, 4755)]