21143864

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{9209}}^1$

素因数の和:9263

約数の個数: 32

約数和(自身を含む): 46418400

約数和(自身を除く): 25274536

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 574, 1148, 2296, 9209, 18418, 36836, 64463, 73672, 128926, 257852, 377569, 515704, 755138, 1510276, 2642983, 3020552, 5285966, 10571932, 21143864]

約数ペア:

[(1, 21143864), (2, 10571932), (4, 5285966), (7, 3020552), (8, 2642983), (14, 1510276), (28, 755138), (41, 515704), (56, 377569), (82, 257852), (164, 128926), (287, 73672), (328, 64463), (574, 36836), (1148, 18418), (2296, 9209)]