19972935

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4987}}^1$

素因数の和:5087

約数の個数: 24

約数和(自身を含む): 35015760

約数和(自身を除く): 15042825

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 4987, 14961, 24935, 44883, 74805, 224415, 443843, 1331529, 2219215, 3994587, 6657645, 19972935]

約数ペア:

[(1, 19972935), (3, 6657645), (5, 3994587), (9, 2219215), (15, 1331529), (45, 443843), (89, 224415), (267, 74805), (445, 44883), (801, 24935), (1335, 14961), (4005, 4987)]