21282248

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4759}}^1$

素因数の和:4821

約数の個数: 32

約数和(自身を含む): 43982400

約数和(自身を除く): 22700152

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4759, 9518, 19036, 38072, 61867, 123734, 204637, 247468, 409274, 494936, 818548, 1637096, 2660281, 5320562, 10641124, 21282248]

約数ペア:

[(1, 21282248), (2, 10641124), (4, 5320562), (8, 2660281), (13, 1637096), (26, 818548), (43, 494936), (52, 409274), (86, 247468), (104, 204637), (172, 123734), (344, 61867), (559, 38072), (1118, 19036), (2236, 9518), (4472, 4759)]