21694240

素因数分解:

$2^5\times 5^1\times {\mathrm{135589}}^1$

素因数の和:135604

約数の個数: 24

約数和(自身を含む): 51253020

約数和(自身を除く): 29558780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 135589, 271178, 542356, 677945, 1084712, 1355890, 2169424, 2711780, 4338848, 5423560, 10847120, 21694240]

約数ペア:

[(1, 21694240), (2, 10847120), (4, 5423560), (5, 4338848), (8, 2711780), (10, 2169424), (16, 1355890), (20, 1084712), (32, 677945), (40, 542356), (80, 271178), (160, 135589)]