20189745

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19507}}^1$

素因数の和:19541

約数の個数: 24

約数和(自身を含む): 36518976

約数和(自身を除く): 16329231

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 19507, 58521, 97535, 175563, 292605, 448661, 877815, 1345983, 2243305, 4037949, 6729915, 20189745]

約数ペア:

[(1, 20189745), (3, 6729915), (5, 4037949), (9, 2243305), (15, 1345983), (23, 877815), (45, 448661), (69, 292605), (115, 175563), (207, 97535), (345, 58521), (1035, 19507)]