221479256

素因数分解:

$2^3\times {\mathrm{1381}}^1\times {\mathrm{20047}}^1$

素因数の和:21434

約数の個数: 16

約数和(自身を含む): 415595040

約数和(自身を除く): 194115784

約数列:

[1, 2, 4, 8, 1381, 2762, 5524, 11048, 20047, 40094, 80188, 160376, 27684907, 55369814, 110739628, 221479256]

約数ペア:

[(1, 221479256), (2, 110739628), (4, 55369814), (8, 27684907), (1381, 160376), (2762, 80188), (5524, 40094), (11048, 20047)]