19157873

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 23639040

約数和(自身を除く): 4481167

約数列:

[1, 7, 23, 49, 89, 161, 191, 623, 1127, 1337, 2047, 4361, 4393, 9359, 14329, 16999, 30751, 100303, 118993, 215257, 390977, 832951, 2736839, 19157873]

約数ペア:

[(1, 19157873), (7, 2736839), (23, 832951), (49, 390977), (89, 215257), (161, 118993), (191, 100303), (623, 30751), (1127, 16999), (1337, 14329), (2047, 9359), (4361, 4393)]