19912938

素因数分解:

$2^1\times 3^1\times {\mathrm{157}}^1\times {\mathrm{21139}}^1$

素因数の和:21301

約数の個数: 16

約数和(自身を含む): 40081440

約数和(自身を除く): 20168502

約数列:

[1, 2, 3, 6, 157, 314, 471, 942, 21139, 42278, 63417, 126834, 3318823, 6637646, 9956469, 19912938]

約数ペア:

[(1, 19912938), (2, 9956469), (3, 6637646), (6, 3318823), (157, 126834), (314, 63417), (471, 42278), (942, 21139)]