21319984

素因数分解:

$2^4\times 7^1\times {\mathrm{190357}}^1$

素因数の和:190372

約数の個数: 20

約数和(自身を含む): 47208784

約数和(自身を除く): 25888800

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190357, 380714, 761428, 1332499, 1522856, 2664998, 3045712, 5329996, 10659992, 21319984]

約数ペア:

[(1, 21319984), (2, 10659992), (4, 5329996), (7, 3045712), (8, 2664998), (14, 1522856), (16, 1332499), (28, 761428), (56, 380714), (112, 190357)]