21833320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{13313}}^1$

素因数の和:13365

約数の個数: 32

約数和(自身を含む): 50326920

約数和(自身を除く): 28493600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 13313, 26626, 53252, 66565, 106504, 133130, 266260, 532520, 545833, 1091666, 2183332, 2729165, 4366664, 5458330, 10916660, 21833320]

約数ペア:

[(1, 21833320), (2, 10916660), (4, 5458330), (5, 4366664), (8, 2729165), (10, 2183332), (20, 1091666), (40, 545833), (41, 532520), (82, 266260), (164, 133130), (205, 106504), (328, 66565), (410, 53252), (820, 26626), (1640, 13313)]