21119290

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{91823}}^1$

素因数の和:91853

約数の個数: 16

約数和(自身を含む): 39667968

約数和(自身を除く): 18548678

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 91823, 183646, 459115, 918230, 2111929, 4223858, 10559645, 21119290]

約数ペア:

[(1, 21119290), (2, 10559645), (5, 4223858), (10, 2111929), (23, 918230), (46, 459115), (115, 183646), (230, 91823)]