221520075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{421943}}^1$

素因数の和:421963

約数の個数: 24

約数和(自身を含む): 418568448

約数和(自身を除く): 197048373

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 421943, 1265829, 2109715, 2953601, 6329145, 8860803, 10548575, 14768005, 31645725, 44304015, 73840025, 221520075]

約数ペア:

[(1, 221520075), (3, 73840025), (5, 44304015), (7, 31645725), (15, 14768005), (21, 10548575), (25, 8860803), (35, 6329145), (75, 2953601), (105, 2109715), (175, 1265829), (525, 421943)]