221330545

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{5689}}^1$

素因数の和:5976

約数の個数: 16

約数和(自身を含む): 275304960

約数和(自身を除く): 53974415

約数列:

[1, 5, 31, 155, 251, 1255, 5689, 7781, 28445, 38905, 176359, 881795, 1427939, 7139695, 44266109, 221330545]

約数ペア:

[(1, 221330545), (5, 44266109), (31, 7139695), (155, 1427939), (251, 881795), (1255, 176359), (5689, 38905), (7781, 28445)]