19561628

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{287671}}^1$

素因数の和:287692

約数の個数: 12

約数和(自身を含む): 36246672

約数和(自身を除く): 16685044

約数列:

[1, 2, 4, 17, 34, 68, 287671, 575342, 1150684, 4890407, 9780814, 19561628]

約数ペア:

[(1, 19561628), (2, 9780814), (4, 4890407), (17, 1150684), (34, 575342), (68, 287671)]