20697712

素因数分解:

$2^4\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1021}}^1$

素因数の和:1217

約数の個数: 40

約数和(自身を含む): 46128992

約数和(自身を除く): 25431280

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 181, 362, 724, 1021, 1267, 1448, 2042, 2534, 2896, 4084, 5068, 7147, 8168, 10136, 14294, 16336, 20272, 28588, 57176, 114352, 184801, 369602, 739204, 1293607, 1478408, 2587214, 2956816, 5174428, 10348856, 20697712]

約数ペア:

[(1, 20697712), (2, 10348856), (4, 5174428), (7, 2956816), (8, 2587214), (14, 1478408), (16, 1293607), (28, 739204), (56, 369602), (112, 184801), (181, 114352), (362, 57176), (724, 28588), (1021, 20272), (1267, 16336), (1448, 14294), (2042, 10136), (2534, 8168), (2896, 7147), (4084, 5068)]