21917318

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{7243}}^1$

素因数の和:7351

約数の個数: 16

約数和(自身を含む): 35205840

約数和(自身を除く): 13288522

約数列:

[1, 2, 17, 34, 89, 178, 1513, 3026, 7243, 14486, 123131, 246262, 644627, 1289254, 10958659, 21917318]

約数ペア:

[(1, 21917318), (2, 10958659), (17, 1289254), (34, 644627), (89, 246262), (178, 123131), (1513, 14486), (3026, 7243)]