19900254

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{1429}}^1$

素因数の和:1656

約数の個数: 32

約数和(自身を含む): 43655040

約数和(自身を除く): 23754786

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 211, 422, 633, 1266, 1429, 2321, 2858, 4287, 4642, 6963, 8574, 13926, 15719, 31438, 47157, 94314, 301519, 603038, 904557, 1809114, 3316709, 6633418, 9950127, 19900254]

約数ペア:

[(1, 19900254), (2, 9950127), (3, 6633418), (6, 3316709), (11, 1809114), (22, 904557), (33, 603038), (66, 301519), (211, 94314), (422, 47157), (633, 31438), (1266, 15719), (1429, 13926), (2321, 8574), (2858, 6963), (4287, 4642)]