19447388

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{16823}}^1$

素因数の和:16861

約数の個数: 18

約数和(自身を含む): 36154776

約数和(自身を除く): 16707388

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 16823, 33646, 67292, 285991, 571982, 1143964, 4861847, 9723694, 19447388]

約数ペア:

[(1, 19447388), (2, 9723694), (4, 4861847), (17, 1143964), (34, 571982), (68, 285991), (289, 67292), (578, 33646), (1156, 16823)]