21452399

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:374

約数の個数: 16

約数和(自身を含む): 23232000

約数和(自身を除く): 1779601

約数列:

[1, 23, 43, 109, 199, 989, 2507, 4577, 4687, 8557, 21691, 107801, 196811, 498893, 932713, 21452399]

約数ペア:

[(1, 21452399), (23, 932713), (43, 498893), (109, 196811), (199, 107801), (989, 21691), (2507, 8557), (4577, 4687)]