21408632

素因数分解:

$2^3\times 7^1\times {\mathrm{431}}^1\times {\mathrm{887}}^1$

素因数の和:1331

約数の個数: 32

約数和(自身を含む): 46033920

約数和(自身を除く): 24625288

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 431, 862, 887, 1724, 1774, 3017, 3448, 3548, 6034, 6209, 7096, 12068, 12418, 24136, 24836, 49672, 382297, 764594, 1529188, 2676079, 3058376, 5352158, 10704316, 21408632]

約数ペア:

[(1, 21408632), (2, 10704316), (4, 5352158), (7, 3058376), (8, 2676079), (14, 1529188), (28, 764594), (56, 382297), (431, 49672), (862, 24836), (887, 24136), (1724, 12418), (1774, 12068), (3017, 7096), (3448, 6209), (3548, 6034)]