21248144

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42839}}^1$

素因数の和:42878

約数の個数: 20

約数和(自身を含む): 42497280

約数和(自身を除く): 21249136

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42839, 85678, 171356, 342712, 685424, 1328009, 2656018, 5312036, 10624072, 21248144]

約数ペア:

[(1, 21248144), (2, 10624072), (4, 5312036), (8, 2656018), (16, 1328009), (31, 685424), (62, 342712), (124, 171356), (248, 85678), (496, 42839)]