221163975

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{42737}}^1$

素因数の和:42776

約数の個数: 36

約数和(自身を含む): 413361936

約数和(自身を除く): 192197961

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 5175, 42737, 128211, 213685, 384633, 641055, 982951, 1068425, 1923165, 2948853, 3205275, 4914755, 8846559, 9615825, 14744265, 24573775, 44232795, 73721325, 221163975]

約数ペア:

[(1, 221163975), (3, 73721325), (5, 44232795), (9, 24573775), (15, 14744265), (23, 9615825), (25, 8846559), (45, 4914755), (69, 3205275), (75, 2948853), (115, 1923165), (207, 1068425), (225, 982951), (345, 641055), (575, 384633), (1035, 213685), (1725, 128211), (5175, 42737)]