19459985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{1279}}^1$

素因数の和:1480

約数の個数: 16

約数和(自身を含む): 24883200

約数和(自身を除く): 5423215

約数列:

[1, 5, 17, 85, 179, 895, 1279, 3043, 6395, 15215, 21743, 108715, 228941, 1144705, 3891997, 19459985]

約数ペア:

[(1, 19459985), (5, 3891997), (17, 1144705), (85, 228941), (179, 108715), (895, 21743), (1279, 15215), (3043, 6395)]