21263838

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{208469}}^1$

素因数の和:208491

約数の個数: 16

約数和(自身を含む): 45029520

約数和(自身を除く): 23765682

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 208469, 416938, 625407, 1250814, 3543973, 7087946, 10631919, 21263838]

約数ペア:

[(1, 21263838), (2, 10631919), (3, 7087946), (6, 3543973), (17, 1250814), (34, 625407), (51, 416938), (102, 208469)]