21052688

素因数分解:

$2^4\times {\mathrm{167}}^1\times {\mathrm{7879}}^1$

素因数の和:8054

約数の個数: 20

約数和(自身を含む): 41039040

約数和(自身を除く): 19986352

約数列:

[1, 2, 4, 8, 16, 167, 334, 668, 1336, 2672, 7879, 15758, 31516, 63032, 126064, 1315793, 2631586, 5263172, 10526344, 21052688]

約数ペア:

[(1, 21052688), (2, 10526344), (4, 5263172), (8, 2631586), (16, 1315793), (167, 126064), (334, 63032), (668, 31516), (1336, 15758), (2672, 7879)]