21382456

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1471}}^1$

素因数の和:1579

約数の個数: 32

約数和(自身を含む): 42393600

約数和(自身を除く): 21011144

約数列:

[1, 2, 4, 8, 23, 46, 79, 92, 158, 184, 316, 632, 1471, 1817, 2942, 3634, 5884, 7268, 11768, 14536, 33833, 67666, 116209, 135332, 232418, 270664, 464836, 929672, 2672807, 5345614, 10691228, 21382456]

約数ペア:

[(1, 21382456), (2, 10691228), (4, 5345614), (8, 2672807), (23, 929672), (46, 464836), (79, 270664), (92, 232418), (158, 135332), (184, 116209), (316, 67666), (632, 33833), (1471, 14536), (1817, 11768), (2942, 7268), (3634, 5884)]