21711344

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25603}}^1$

素因数の和:25664

約数の個数: 20

約数和(自身を含む): 42861096

約数和(自身を除く): 21149752

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25603, 51206, 102412, 204824, 409648, 1356959, 2713918, 5427836, 10855672, 21711344]

約数ペア:

[(1, 21711344), (2, 10855672), (4, 5427836), (8, 2713918), (16, 1356959), (53, 409648), (106, 204824), (212, 102412), (424, 51206), (848, 25603)]