19971375

素因数分解:

$3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{2803}}^1$

素因数の和:2840

約数の個数: 32

約数和(自身を含む): 34993920

約数和(自身を除く): 15022545

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 475, 1425, 2375, 2803, 7125, 8409, 14015, 42045, 53257, 70075, 159771, 210225, 266285, 350375, 798855, 1051125, 1331425, 3994275, 6657125, 19971375]

約数ペア:

[(1, 19971375), (3, 6657125), (5, 3994275), (15, 1331425), (19, 1051125), (25, 798855), (57, 350375), (75, 266285), (95, 210225), (125, 159771), (285, 70075), (375, 53257), (475, 42045), (1425, 14015), (2375, 8409), (2803, 7125)]