21409944

素因数分解:

$2^3\times 3^1\times {\mathrm{691}}^1\times {\mathrm{1291}}^1$

素因数の和:1991

約数の個数: 32

約数和(自身を含む): 53643840

約数和(自身を除く): 32233896

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 691, 1291, 1382, 2073, 2582, 2764, 3873, 4146, 5164, 5528, 7746, 8292, 10328, 15492, 16584, 30984, 892081, 1784162, 2676243, 3568324, 5352486, 7136648, 10704972, 21409944]

約数ペア:

[(1, 21409944), (2, 10704972), (3, 7136648), (4, 5352486), (6, 3568324), (8, 2676243), (12, 1784162), (24, 892081), (691, 30984), (1291, 16584), (1382, 15492), (2073, 10328), (2582, 8292), (2764, 7746), (3873, 5528), (4146, 5164)]