19989232

素因数分解:

$2^4\times {\mathrm{167}}^1\times {\mathrm{7481}}^1$

素因数の和:7656

約数の個数: 20

約数和(自身を含む): 38966256

約数和(自身を除く): 18977024

約数列:

[1, 2, 4, 8, 16, 167, 334, 668, 1336, 2672, 7481, 14962, 29924, 59848, 119696, 1249327, 2498654, 4997308, 9994616, 19989232]

約数ペア:

[(1, 19989232), (2, 9994616), (4, 4997308), (8, 2498654), (16, 1249327), (167, 119696), (334, 59848), (668, 29924), (1336, 14962), (2672, 7481)]