21871472

素因数分解:

$2^4\times 7^1\times {\mathrm{195281}}^1$

素因数の和:195296

約数の個数: 20

約数和(自身を含む): 48429936

約数和(自身を除く): 26558464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 195281, 390562, 781124, 1366967, 1562248, 2733934, 3124496, 5467868, 10935736, 21871472]

約数ペア:

[(1, 21871472), (2, 10935736), (4, 5467868), (7, 3124496), (8, 2733934), (14, 1562248), (16, 1366967), (28, 781124), (56, 390562), (112, 195281)]