21841365

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{16001}}^1$

素因数の和:16029

約数の個数: 32

約数和(自身を含む): 43013376

約数和(自身を除く): 21172011

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 16001, 48003, 80005, 112007, 208013, 240015, 336021, 560035, 624039, 1040065, 1456091, 1680105, 3120195, 4368273, 7280455, 21841365]

約数ペア:

[(1, 21841365), (3, 7280455), (5, 4368273), (7, 3120195), (13, 1680105), (15, 1456091), (21, 1040065), (35, 624039), (39, 560035), (65, 336021), (91, 240015), (105, 208013), (195, 112007), (273, 80005), (455, 48003), (1365, 16001)]