21881924

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{823}}^1$

素因数の和:884

約数の個数: 36

約数和(自身を含む): 42498624

約数和(自身を除く): 20616700

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 92, 289, 391, 578, 782, 823, 1156, 1564, 1646, 3292, 6647, 13294, 13991, 18929, 26588, 27982, 37858, 55964, 75716, 237847, 321793, 475694, 643586, 951388, 1287172, 5470481, 10940962, 21881924]

約数ペア:

[(1, 21881924), (2, 10940962), (4, 5470481), (17, 1287172), (23, 951388), (34, 643586), (46, 475694), (68, 321793), (92, 237847), (289, 75716), (391, 55964), (578, 37858), (782, 27982), (823, 26588), (1156, 18929), (1564, 13991), (1646, 13294), (3292, 6647)]