221350275

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{42773}}^1$

素因数の和:42812

約数の個数: 36

約数和(自身を含む): 413710128

約数和(自身を除く): 192359853

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 5175, 42773, 128319, 213865, 384957, 641595, 983779, 1069325, 1924785, 2951337, 3207975, 4918895, 8854011, 9623925, 14756685, 24594475, 44270055, 73783425, 221350275]

約数ペア:

[(1, 221350275), (3, 73783425), (5, 44270055), (9, 24594475), (15, 14756685), (23, 9623925), (25, 8854011), (45, 4918895), (69, 3207975), (75, 2951337), (115, 1924785), (207, 1069325), (225, 983779), (345, 641595), (575, 384957), (1035, 213865), (1725, 128319), (5175, 42773)]