21342.000000

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 1279488

約数和(自身を除く): 786268

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 271, 364, 455, 542, 910, 1084, 1355, 1820, 1897, 2710, 3523, 3794, 5420, 7046, 7588, 9485, 14092, 17615, 18970, 24661, 35230, 37940, 49322, 70460, 98644, 123305, 246610, 493220]

約数ペア:

[(1, 493220), (2, 246610), (4, 123305), (5, 98644), (7, 70460), (10, 49322), (13, 37940), (14, 35230), (20, 24661), (26, 18970), (28, 17615), (35, 14092), (52, 9485), (65, 7588), (70, 7046), (91, 5420), (130, 3794), (140, 3523), (182, 2710), (260, 1897), (271, 1820), (364, 1355), (455, 1084), (542, 910)]