19722258

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{9871}}^1$

素因数の和:9919

約数の個数: 32

約数和(自身を含む): 45016320

約数和(自身を除く): 25294062

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 9871, 19742, 29613, 59226, 88839, 177678, 266517, 365227, 533034, 730454, 1095681, 2191362, 3287043, 6574086, 9861129, 19722258]

約数ペア:

[(1, 19722258), (2, 9861129), (3, 6574086), (6, 3287043), (9, 2191362), (18, 1095681), (27, 730454), (37, 533034), (54, 365227), (74, 266517), (111, 177678), (222, 88839), (333, 59226), (666, 29613), (999, 19742), (1998, 9871)]