21563848

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{86951}}^1$

素因数の和:86988

約数の個数: 16

約数和(自身を含む): 41736960

約数和(自身を除く): 20173112

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 86951, 173902, 347804, 695608, 2695481, 5390962, 10781924, 21563848]

約数ペア:

[(1, 21563848), (2, 10781924), (4, 5390962), (8, 2695481), (31, 695608), (62, 347804), (124, 173902), (248, 86951)]