19778308

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{4201}}^1$

素因数の和:4323

約数の個数: 24

約数和(自身を含む): 38120544

約数和(自身を除く): 18342236

約数列:

[1, 2, 4, 11, 22, 44, 107, 214, 428, 1177, 2354, 4201, 4708, 8402, 16804, 46211, 92422, 184844, 449507, 899014, 1798028, 4944577, 9889154, 19778308]

約数ペア:

[(1, 19778308), (2, 9889154), (4, 4944577), (11, 1798028), (22, 899014), (44, 449507), (107, 184844), (214, 92422), (428, 46211), (1177, 16804), (2354, 8402), (4201, 4708)]