21385352

素因数分解:

$2^3\times {\mathrm{167}}^1\times {\mathrm{16007}}^1$

素因数の和:16180

約数の個数: 16

約数和(自身を含む): 40340160

約数和(自身を除く): 18954808

約数列:

[1, 2, 4, 8, 167, 334, 668, 1336, 16007, 32014, 64028, 128056, 2673169, 5346338, 10692676, 21385352]

約数ペア:

[(1, 21385352), (2, 10692676), (4, 5346338), (8, 2673169), (167, 128056), (334, 64028), (668, 32014), (1336, 16007)]