19782901

素因数分解:

${\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{179}}^1$

素因数の和:348

約数の個数: 16

約数和(自身を含む): 21340800

約数和(自身を除く): 1557899

約数列:

[1, 29, 37, 103, 179, 1073, 2987, 3811, 5191, 6623, 18437, 110519, 192067, 534673, 682169, 19782901]

約数ペア:

[(1, 19782901), (29, 682169), (37, 534673), (103, 192067), (179, 110519), (1073, 18437), (2987, 6623), (3811, 5191)]