19912485

素因数分解:

$3^1\times 5^1\times {\mathrm{823}}^1\times {\mathrm{1613}}^1$

素因数の和:2444

約数の個数: 16

約数和(自身を含む): 31918464

約数和(自身を除く): 12005979

約数列:

[1, 3, 5, 15, 823, 1613, 2469, 4115, 4839, 8065, 12345, 24195, 1327499, 3982497, 6637495, 19912485]

約数ペア:

[(1, 19912485), (3, 6637495), (5, 3982497), (15, 1327499), (823, 24195), (1613, 12345), (2469, 8065), (4115, 4839)]